mod: bump github.com/golangci/golangci-lint from 1.56.2 to 1.57.2

Bumps [github.com/golangci/golangci-lint](https://github.com/golangci/golangci-lint) from 1.56.2 to 1.57.2.
- [Release notes](https://github.com/golangci/golangci-lint/releases)
- [Changelog](https://github.com/golangci/golangci-lint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/golangci/golangci-lint/compare/v1.56.2...v1.57.2)

---
updated-dependencies:
- dependency-name: github.com/golangci/golangci-lint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

13 files changed, 0 insertions, 953 deletions

diff --git a/vendor/github.com/kisielk/gotool/.travis.yml b/vendor/github.com/kisielk/gotool/.travis.yml
deleted file mode 100644
index d1784e1e2..000000000
--- a/vendor/github.com/kisielk/gotool/.travis.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-sudo: false
-language: go
-go:
-  - 1.2
-  - 1.3
-  - 1.4
-  - 1.5
-  - 1.6
-  - 1.7
-  - 1.8
-  - 1.9
-  - master
-matrix:
-  allow_failures:
-    - go: master
-  fast_finish: true
-install:
-  - # Skip.
-script:
-  - go get -t -v ./...
-  - diff -u <(echo -n) <(gofmt -d .)
-  - go tool vet .
-  - go test -v -race ./...
diff --git a/vendor/github.com/kisielk/gotool/LEGAL b/vendor/github.com/kisielk/gotool/LEGAL
deleted file mode 100644
index 72b859cd6..000000000
--- a/vendor/github.com/kisielk/gotool/LEGAL
+++ /dev/null
@@ -1,32 +0,0 @@
-All the files in this distribution are covered under either the MIT
-license (see the file LICENSE) except some files mentioned below.
-
-match.go, match_test.go:
-
-    Copyright (c) 2009 The Go Authors. All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are
-    met:
-
-       * Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-       * Redistributions in binary form must reproduce the above
-    copyright notice, this list of conditions and the following disclaimer
-    in the documentation and/or other materials provided with the
-    distribution.
-       * Neither the name of Google Inc. nor the names of its
-    contributors may be used to endorse or promote products derived from
-    this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/kisielk/gotool/LICENSE b/vendor/github.com/kisielk/gotool/LICENSE
deleted file mode 100644
index 1cbf651e2..000000000
--- a/vendor/github.com/kisielk/gotool/LICENSE
+++ /dev/null
@@ -1,20 +0,0 @@
-Copyright (c) 2013 Kamil Kisiel <kamil@kamilkisiel.net>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/kisielk/gotool/README.md b/vendor/github.com/kisielk/gotool/README.md
deleted file mode 100644
index 6e4e92b2f..000000000
--- a/vendor/github.com/kisielk/gotool/README.md
+++ /dev/null
@@ -1,6 +0,0 @@
-gotool
-======
-[![GoDoc](https://godoc.org/github.com/kisielk/gotool?status.svg)](https://godoc.org/github.com/kisielk/gotool)
-[![Build Status](https://travis-ci.org/kisielk/gotool.svg?branch=master)](https://travis-ci.org/kisielk/gotool)
-
-Package gotool contains utility functions used to implement the standard "cmd/go" tool, provided as a convenience to developers who want to write tools with similar semantics.
diff --git a/vendor/github.com/kisielk/gotool/go13.go b/vendor/github.com/kisielk/gotool/go13.go
deleted file mode 100644
index 2dd9b3fdf..000000000
--- a/vendor/github.com/kisielk/gotool/go13.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// +build !go1.4
-
-package gotool
-
-import (
-	"go/build"
-	"path/filepath"
-	"runtime"
-)
-
-var gorootSrc = filepath.Join(runtime.GOROOT(), "src", "pkg")
-
-func shouldIgnoreImport(p *build.Package) bool {
-	return true
-}
diff --git a/vendor/github.com/kisielk/gotool/go14-15.go b/vendor/github.com/kisielk/gotool/go14-15.go
deleted file mode 100644
index aa99a3227..000000000
--- a/vendor/github.com/kisielk/gotool/go14-15.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// +build go1.4,!go1.6
-
-package gotool
-
-import (
-	"go/build"
-	"path/filepath"
-	"runtime"
-)
-
-var gorootSrc = filepath.Join(runtime.GOROOT(), "src")
-
-func shouldIgnoreImport(p *build.Package) bool {
-	return true
-}
diff --git a/vendor/github.com/kisielk/gotool/go16-18.go b/vendor/github.com/kisielk/gotool/go16-18.go
deleted file mode 100644
index f25cec14a..000000000
--- a/vendor/github.com/kisielk/gotool/go16-18.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// +build go1.6,!go1.9
-
-package gotool
-
-import (
-	"go/build"
-	"path/filepath"
-	"runtime"
-)
-
-var gorootSrc = filepath.Join(runtime.GOROOT(), "src")
-
-func shouldIgnoreImport(p *build.Package) bool {
-	return p == nil || len(p.InvalidGoFiles) == 0
-}
diff --git a/vendor/github.com/kisielk/gotool/internal/load/path.go b/vendor/github.com/kisielk/gotool/internal/load/path.go
deleted file mode 100644
index 74e15b9d3..000000000
--- a/vendor/github.com/kisielk/gotool/internal/load/path.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.9
-
-package load
-
-import (
-	"strings"
-)
-
-// hasPathPrefix reports whether the path s begins with the
-// elements in prefix.
-func hasPathPrefix(s, prefix string) bool {
-	switch {
-	default:
-		return false
-	case len(s) == len(prefix):
-		return s == prefix
-	case len(s) > len(prefix):
-		if prefix != "" && prefix[len(prefix)-1] == '/' {
-			return strings.HasPrefix(s, prefix)
-		}
-		return s[len(prefix)] == '/' && s[:len(prefix)] == prefix
-	}
-}
diff --git a/vendor/github.com/kisielk/gotool/internal/load/pkg.go b/vendor/github.com/kisielk/gotool/internal/load/pkg.go
deleted file mode 100644
index b937ede75..000000000
--- a/vendor/github.com/kisielk/gotool/internal/load/pkg.go
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.9
-
-// Package load loads packages.
-package load
-
-import (
-	"strings"
-)
-
-// isStandardImportPath reports whether $GOROOT/src/path should be considered
-// part of the standard distribution. For historical reasons we allow people to add
-// their own code to $GOROOT instead of using $GOPATH, but we assume that
-// code will start with a domain name (dot in the first element).
-func isStandardImportPath(path string) bool {
-	i := strings.Index(path, "/")
-	if i < 0 {
-		i = len(path)
-	}
-	elem := path[:i]
-	return !strings.Contains(elem, ".")
-}
diff --git a/vendor/github.com/kisielk/gotool/internal/load/search.go b/vendor/github.com/kisielk/gotool/internal/load/search.go
deleted file mode 100644
index 17ed62dda..000000000
--- a/vendor/github.com/kisielk/gotool/internal/load/search.go
+++ /dev/null
@@ -1,354 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.9
-
-package load
-
-import (
-	"fmt"
-	"go/build"
-	"log"
-	"os"
-	"path"
-	"path/filepath"
-	"regexp"
-	"strings"
-)
-
-// Context specifies values for operation of ImportPaths that would
-// otherwise come from cmd/go/internal/cfg package.
-//
-// This is a construct added for gotool purposes and doesn't have
-// an equivalent upstream in cmd/go.
-type Context struct {
-	// BuildContext is the build context to use.
-	BuildContext build.Context
-
-	// GOROOTsrc is the location of the src directory in GOROOT.
-	// At this time, it's used only in MatchPackages to skip
-	// GOOROOT/src entry from BuildContext.SrcDirs output.
-	GOROOTsrc string
-}
-
-// allPackages returns all the packages that can be found
-// under the $GOPATH directories and $GOROOT matching pattern.
-// The pattern is either "all" (all packages), "std" (standard packages),
-// "cmd" (standard commands), or a path including "...".
-func (c *Context) allPackages(pattern string) []string {
-	pkgs := c.MatchPackages(pattern)
-	if len(pkgs) == 0 {
-		fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
-	}
-	return pkgs
-}
-
-// allPackagesInFS is like allPackages but is passed a pattern
-// beginning ./ or ../, meaning it should scan the tree rooted
-// at the given directory. There are ... in the pattern too.
-func (c *Context) allPackagesInFS(pattern string) []string {
-	pkgs := c.MatchPackagesInFS(pattern)
-	if len(pkgs) == 0 {
-		fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
-	}
-	return pkgs
-}
-
-// MatchPackages returns a list of package paths matching pattern
-// (see go help packages for pattern syntax).
-func (c *Context) MatchPackages(pattern string) []string {
-	match := func(string) bool { return true }
-	treeCanMatch := func(string) bool { return true }
-	if !IsMetaPackage(pattern) {
-		match = matchPattern(pattern)
-		treeCanMatch = treeCanMatchPattern(pattern)
-	}
-
-	have := map[string]bool{
-		"builtin": true, // ignore pseudo-package that exists only for documentation
-	}
-	if !c.BuildContext.CgoEnabled {
-		have["runtime/cgo"] = true // ignore during walk
-	}
-	var pkgs []string
-
-	for _, src := range c.BuildContext.SrcDirs() {
-		if (pattern == "std" || pattern == "cmd") && src != c.GOROOTsrc {
-			continue
-		}
-		src = filepath.Clean(src) + string(filepath.Separator)
-		root := src
-		if pattern == "cmd" {
-			root += "cmd" + string(filepath.Separator)
-		}
-		filepath.Walk(root, func(path string, fi os.FileInfo, err error) error {
-			if err != nil || path == src {
-				return nil
-			}
-
-			want := true
-			// Avoid .foo, _foo, and testdata directory trees.
-			_, elem := filepath.Split(path)
-			if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
-				want = false
-			}
-
-			name := filepath.ToSlash(path[len(src):])
-			if pattern == "std" && (!isStandardImportPath(name) || name == "cmd") {
-				// The name "std" is only the standard library.
-				// If the name is cmd, it's the root of the command tree.
-				want = false
-			}
-			if !treeCanMatch(name) {
-				want = false
-			}
-
-			if !fi.IsDir() {
-				if fi.Mode()&os.ModeSymlink != 0 && want {
-					if target, err := os.Stat(path); err == nil && target.IsDir() {
-						fmt.Fprintf(os.Stderr, "warning: ignoring symlink %s\n", path)
-					}
-				}
-				return nil
-			}
-			if !want {
-				return filepath.SkipDir
-			}
-
-			if have[name] {
-				return nil
-			}
-			have[name] = true
-			if !match(name) {
-				return nil
-			}
-			pkg, err := c.BuildContext.ImportDir(path, 0)
-			if err != nil {
-				if _, noGo := err.(*build.NoGoError); noGo {
-					return nil
-				}
-			}
-
-			// If we are expanding "cmd", skip main
-			// packages under cmd/vendor. At least as of
-			// March, 2017, there is one there for the
-			// vendored pprof tool.
-			if pattern == "cmd" && strings.HasPrefix(pkg.ImportPath, "cmd/vendor") && pkg.Name == "main" {
-				return nil
-			}
-
-			pkgs = append(pkgs, name)
-			return nil
-		})
-	}
-	return pkgs
-}
-
-// MatchPackagesInFS returns a list of package paths matching pattern,
-// which must begin with ./ or ../
-// (see go help packages for pattern syntax).
-func (c *Context) MatchPackagesInFS(pattern string) []string {
-	// Find directory to begin the scan.
-	// Could be smarter but this one optimization
-	// is enough for now, since ... is usually at the
-	// end of a path.
-	i := strings.Index(pattern, "...")
-	dir, _ := path.Split(pattern[:i])
-
-	// pattern begins with ./ or ../.
-	// path.Clean will discard the ./ but not the ../.
-	// We need to preserve the ./ for pattern matching
-	// and in the returned import paths.
-	prefix := ""
-	if strings.HasPrefix(pattern, "./") {
-		prefix = "./"
-	}
-	match := matchPattern(pattern)
-
-	var pkgs []string
-	filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
-		if err != nil || !fi.IsDir() {
-			return nil
-		}
-		if path == dir {
-			// filepath.Walk starts at dir and recurses. For the recursive case,
-			// the path is the result of filepath.Join, which calls filepath.Clean.
-			// The initial case is not Cleaned, though, so we do this explicitly.
-			//
-			// This converts a path like "./io/" to "io". Without this step, running
-			// "cd $GOROOT/src; go list ./io/..." would incorrectly skip the io
-			// package, because prepending the prefix "./" to the unclean path would
-			// result in "././io", and match("././io") returns false.
-			path = filepath.Clean(path)
-		}
-
-		// Avoid .foo, _foo, and testdata directory trees, but do not avoid "." or "..".
-		_, elem := filepath.Split(path)
-		dot := strings.HasPrefix(elem, ".") && elem != "." && elem != ".."
-		if dot || strings.HasPrefix(elem, "_") || elem == "testdata" {
-			return filepath.SkipDir
-		}
-
-		name := prefix + filepath.ToSlash(path)
-		if !match(name) {
-			return nil
-		}
-
-		// We keep the directory if we can import it, or if we can't import it
-		// due to invalid Go source files. This means that directories containing
-		// parse errors will be built (and fail) instead of being silently skipped
-		// as not matching the pattern. Go 1.5 and earlier skipped, but that
-		// behavior means people miss serious mistakes.
-		// See golang.org/issue/11407.
-		if p, err := c.BuildContext.ImportDir(path, 0); err != nil && (p == nil || len(p.InvalidGoFiles) == 0) {
-			if _, noGo := err.(*build.NoGoError); !noGo {
-				log.Print(err)
-			}
-			return nil
-		}
-		pkgs = append(pkgs, name)
-		return nil
-	})
-	return pkgs
-}
-
-// treeCanMatchPattern(pattern)(name) reports whether
-// name or children of name can possibly match pattern.
-// Pattern is the same limited glob accepted by matchPattern.
-func treeCanMatchPattern(pattern string) func(name string) bool {
-	wildCard := false
-	if i := strings.Index(pattern, "..."); i >= 0 {
-		wildCard = true
-		pattern = pattern[:i]
-	}
-	return func(name string) bool {
-		return len(name) <= len(pattern) && hasPathPrefix(pattern, name) ||
-			wildCard && strings.HasPrefix(name, pattern)
-	}
-}
-
-// matchPattern(pattern)(name) reports whether
-// name matches pattern. Pattern is a limited glob
-// pattern in which '...' means 'any string' and there
-// is no other special syntax.
-// Unfortunately, there are two special cases. Quoting "go help packages":
-//
-// First, /... at the end of the pattern can match an empty string,
-// so that net/... matches both net and packages in its subdirectories, like net/http.
-// Second, any slash-separted pattern element containing a wildcard never
-// participates in a match of the "vendor" element in the path of a vendored
-// package, so that ./... does not match packages in subdirectories of
-// ./vendor or ./mycode/vendor, but ./vendor/... and ./mycode/vendor/... do.
-// Note, however, that a directory named vendor that itself contains code
-// is not a vendored package: cmd/vendor would be a command named vendor,
-// and the pattern cmd/... matches it.
-func matchPattern(pattern string) func(name string) bool {
-	// Convert pattern to regular expression.
-	// The strategy for the trailing /... is to nest it in an explicit ? expression.
-	// The strategy for the vendor exclusion is to change the unmatchable
-	// vendor strings to a disallowed code point (vendorChar) and to use
-	// "(anything but that codepoint)*" as the implementation of the ... wildcard.
-	// This is a bit complicated but the obvious alternative,
-	// namely a hand-written search like in most shell glob matchers,
-	// is too easy to make accidentally exponential.
-	// Using package regexp guarantees linear-time matching.
-
-	const vendorChar = "\x00"
-
-	if strings.Contains(pattern, vendorChar) {
-		return func(name string) bool { return false }
-	}
-
-	re := regexp.QuoteMeta(pattern)
-	re = replaceVendor(re, vendorChar)
-	switch {
-	case strings.HasSuffix(re, `/`+vendorChar+`/\.\.\.`):
-		re = strings.TrimSuffix(re, `/`+vendorChar+`/\.\.\.`) + `(/vendor|/` + vendorChar + `/\.\.\.)`
-	case re == vendorChar+`/\.\.\.`:
-		re = `(/vendor|/` + vendorChar + `/\.\.\.)`
-	case strings.HasSuffix(re, `/\.\.\.`):
-		re = strings.TrimSuffix(re, `/\.\.\.`) + `(/\.\.\.)?`
-	}
-	re = strings.Replace(re, `\.\.\.`, `[^`+vendorChar+`]*`, -1)
-
-	reg := regexp.MustCompile(`^` + re + `$`)
-
-	return func(name string) bool {
-		if strings.Contains(name, vendorChar) {
-			return false
-		}
-		return reg.MatchString(replaceVendor(name, vendorChar))
-	}
-}
-
-// replaceVendor returns the result of replacing
-// non-trailing vendor path elements in x with repl.
-func replaceVendor(x, repl string) string {
-	if !strings.Contains(x, "vendor") {
-		return x
-	}
-	elem := strings.Split(x, "/")
-	for i := 0; i < len(elem)-1; i++ {
-		if elem[i] == "vendor" {
-			elem[i] = repl
-		}
-	}
-	return strings.Join(elem, "/")
-}
-
-// ImportPaths returns the import paths to use for the given command line.
-func (c *Context) ImportPaths(args []string) []string {
-	args = c.ImportPathsNoDotExpansion(args)
-	var out []string
-	for _, a := range args {
-		if strings.Contains(a, "...") {
-			if build.IsLocalImport(a) {
-				out = append(out, c.allPackagesInFS(a)...)
-			} else {
-				out = append(out, c.allPackages(a)...)
-			}
-			continue
-		}
-		out = append(out, a)
-	}
-	return out
-}
-
-// ImportPathsNoDotExpansion returns the import paths to use for the given
-// command line, but it does no ... expansion.
-func (c *Context) ImportPathsNoDotExpansion(args []string) []string {
-	if len(args) == 0 {
-		return []string{"."}
-	}
-	var out []string
-	for _, a := range args {
-		// Arguments are supposed to be import paths, but
-		// as a courtesy to Windows developers, rewrite \ to /
-		// in command-line arguments. Handles .\... and so on.
-		if filepath.Separator == '\\' {
-			a = strings.Replace(a, `\`, `/`, -1)
-		}
-
-		// Put argument in canonical form, but preserve leading ./.
-		if strings.HasPrefix(a, "./") {
-			a = "./" + path.Clean(a)
-			if a == "./." {
-				a = "."
-			}
-		} else {
-			a = path.Clean(a)
-		}
-		if IsMetaPackage(a) {
-			out = append(out, c.allPackages(a)...)
-			continue
-		}
-		out = append(out, a)
-	}
-	return out
-}
-
-// IsMetaPackage checks if name is a reserved package name that expands to multiple packages.
-func IsMetaPackage(name string) bool {
-	return name == "std" || name == "cmd" || name == "all"
-}
diff --git a/vendor/github.com/kisielk/gotool/match.go b/vendor/github.com/kisielk/gotool/match.go
deleted file mode 100644
index 4dbdbff47..000000000
--- a/vendor/github.com/kisielk/gotool/match.go
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2009 The Go Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// +build go1.9
-
-package gotool
-
-import (
-	"path/filepath"
-
-	"github.com/kisielk/gotool/internal/load"
-)
-
-// importPaths returns the import paths to use for the given command line.
-func (c *Context) importPaths(args []string) []string {
-	lctx := load.Context{
-		BuildContext: c.BuildContext,
-		GOROOTsrc:    c.joinPath(c.BuildContext.GOROOT, "src"),
-	}
-	return lctx.ImportPaths(args)
-}
-
-// joinPath calls c.BuildContext.JoinPath (if not nil) or else filepath.Join.
-//
-// It's a copy of the unexported build.Context.joinPath helper.
-func (c *Context) joinPath(elem ...string) string {
-	if f := c.BuildContext.JoinPath; f != nil {
-		return f(elem...)
-	}
-	return filepath.Join(elem...)
-}
diff --git a/vendor/github.com/kisielk/gotool/match18.go b/vendor/github.com/kisielk/gotool/match18.go
deleted file mode 100644
index 6d6b1368c..000000000
--- a/vendor/github.com/kisielk/gotool/match18.go
+++ /dev/null
@@ -1,317 +0,0 @@
-// Copyright (c) 2009 The Go Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// +build !go1.9
-
-package gotool
-
-import (
-	"fmt"
-	"go/build"
-	"log"
-	"os"
-	"path"
-	"path/filepath"
-	"regexp"
-	"strings"
-)
-
-// This file contains code from the Go distribution.
-
-// matchPattern(pattern)(name) reports whether
-// name matches pattern. Pattern is a limited glob
-// pattern in which '...' means 'any string' and there
-// is no other special syntax.
-func matchPattern(pattern string) func(name string) bool {
-	re := regexp.QuoteMeta(pattern)
-	re = strings.Replace(re, `\.\.\.`, `.*`, -1)
-	// Special case: foo/... matches foo too.
-	if strings.HasSuffix(re, `/.*`) {
-		re = re[:len(re)-len(`/.*`)] + `(/.*)?`
-	}
-	reg := regexp.MustCompile(`^` + re + `$`)
-	return reg.MatchString
-}
-
-// matchPackages returns a list of package paths matching pattern
-// (see go help packages for pattern syntax).
-func (c *Context) matchPackages(pattern string) []string {
-	match := func(string) bool { return true }
-	treeCanMatch := func(string) bool { return true }
-	if !isMetaPackage(pattern) {
-		match = matchPattern(pattern)
-		treeCanMatch = treeCanMatchPattern(pattern)
-	}
-
-	have := map[string]bool{
-		"builtin": true, // ignore pseudo-package that exists only for documentation
-	}
-	if !c.BuildContext.CgoEnabled {
-		have["runtime/cgo"] = true // ignore during walk
-	}
-	var pkgs []string
-
-	for _, src := range c.BuildContext.SrcDirs() {
-		if (pattern == "std" || pattern == "cmd") && src != gorootSrc {
-			continue
-		}
-		src = filepath.Clean(src) + string(filepath.Separator)
-		root := src
-		if pattern == "cmd" {
-			root += "cmd" + string(filepath.Separator)
-		}
-		filepath.Walk(root, func(path string, fi os.FileInfo, err error) error {
-			if err != nil || !fi.IsDir() || path == src {
-				return nil
-			}
-
-			// Avoid .foo, _foo, and testdata directory trees.
-			_, elem := filepath.Split(path)
-			if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
-				return filepath.SkipDir
-			}
-
-			name := filepath.ToSlash(path[len(src):])
-			if pattern == "std" && (!isStandardImportPath(name) || name == "cmd") {
-				// The name "std" is only the standard library.
-				// If the name is cmd, it's the root of the command tree.
-				return filepath.SkipDir
-			}
-			if !treeCanMatch(name) {
-				return filepath.SkipDir
-			}
-			if have[name] {
-				return nil
-			}
-			have[name] = true
-			if !match(name) {
-				return nil
-			}
-			_, err = c.BuildContext.ImportDir(path, 0)
-			if err != nil {
-				if _, noGo := err.(*build.NoGoError); noGo {
-					return nil
-				}
-			}
-			pkgs = append(pkgs, name)
-			return nil
-		})
-	}
-	return pkgs
-}
-
-// importPathsNoDotExpansion returns the import paths to use for the given
-// command line, but it does no ... expansion.
-func (c *Context) importPathsNoDotExpansion(args []string) []string {
-	if len(args) == 0 {
-		return []string{"."}
-	}
-	var out []string
-	for _, a := range args {
-		// Arguments are supposed to be import paths, but
-		// as a courtesy to Windows developers, rewrite \ to /
-		// in command-line arguments. Handles .\... and so on.
-		if filepath.Separator == '\\' {
-			a = strings.Replace(a, `\`, `/`, -1)
-		}
-
-		// Put argument in canonical form, but preserve leading ./.
-		if strings.HasPrefix(a, "./") {
-			a = "./" + path.Clean(a)
-			if a == "./." {
-				a = "."
-			}
-		} else {
-			a = path.Clean(a)
-		}
-		if isMetaPackage(a) {
-			out = append(out, c.allPackages(a)...)
-			continue
-		}
-		out = append(out, a)
-	}
-	return out
-}
-
-// importPaths returns the import paths to use for the given command line.
-func (c *Context) importPaths(args []string) []string {
-	args = c.importPathsNoDotExpansion(args)
-	var out []string
-	for _, a := range args {
-		if strings.Contains(a, "...") {
-			if build.IsLocalImport(a) {
-				out = append(out, c.allPackagesInFS(a)...)
-			} else {
-				out = append(out, c.allPackages(a)...)
-			}
-			continue
-		}
-		out = append(out, a)
-	}
-	return out
-}
-
-// allPackages returns all the packages that can be found
-// under the $GOPATH directories and $GOROOT matching pattern.
-// The pattern is either "all" (all packages), "std" (standard packages),
-// "cmd" (standard commands), or a path including "...".
-func (c *Context) allPackages(pattern string) []string {
-	pkgs := c.matchPackages(pattern)
-	if len(pkgs) == 0 {
-		fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
-	}
-	return pkgs
-}
-
-// allPackagesInFS is like allPackages but is passed a pattern
-// beginning ./ or ../, meaning it should scan the tree rooted
-// at the given directory. There are ... in the pattern too.
-func (c *Context) allPackagesInFS(pattern string) []string {
-	pkgs := c.matchPackagesInFS(pattern)
-	if len(pkgs) == 0 {
-		fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
-	}
-	return pkgs
-}
-
-// matchPackagesInFS returns a list of package paths matching pattern,
-// which must begin with ./ or ../
-// (see go help packages for pattern syntax).
-func (c *Context) matchPackagesInFS(pattern string) []string {
-	// Find directory to begin the scan.
-	// Could be smarter but this one optimization
-	// is enough for now, since ... is usually at the
-	// end of a path.
-	i := strings.Index(pattern, "...")
-	dir, _ := path.Split(pattern[:i])
-
-	// pattern begins with ./ or ../.
-	// path.Clean will discard the ./ but not the ../.
-	// We need to preserve the ./ for pattern matching
-	// and in the returned import paths.
-	prefix := ""
-	if strings.HasPrefix(pattern, "./") {
-		prefix = "./"
-	}
-	match := matchPattern(pattern)
-
-	var pkgs []string
-	filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
-		if err != nil || !fi.IsDir() {
-			return nil
-		}
-		if path == dir {
-			// filepath.Walk starts at dir and recurses. For the recursive case,
-			// the path is the result of filepath.Join, which calls filepath.Clean.
-			// The initial case is not Cleaned, though, so we do this explicitly.
-			//
-			// This converts a path like "./io/" to "io". Without this step, running
-			// "cd $GOROOT/src; go list ./io/..." would incorrectly skip the io
-			// package, because prepending the prefix "./" to the unclean path would
-			// result in "././io", and match("././io") returns false.
-			path = filepath.Clean(path)
-		}
-
-		// Avoid .foo, _foo, and testdata directory trees, but do not avoid "." or "..".
-		_, elem := filepath.Split(path)
-		dot := strings.HasPrefix(elem, ".") && elem != "." && elem != ".."
-		if dot || strings.HasPrefix(elem, "_") || elem == "testdata" {
-			return filepath.SkipDir
-		}
-
-		name := prefix + filepath.ToSlash(path)
-		if !match(name) {
-			return nil
-		}
-
-		// We keep the directory if we can import it, or if we can't import it
-		// due to invalid Go source files. This means that directories containing
-		// parse errors will be built (and fail) instead of being silently skipped
-		// as not matching the pattern. Go 1.5 and earlier skipped, but that
-		// behavior means people miss serious mistakes.
-		// See golang.org/issue/11407.
-		if p, err := c.BuildContext.ImportDir(path, 0); err != nil && shouldIgnoreImport(p) {
-			if _, noGo := err.(*build.NoGoError); !noGo {
-				log.Print(err)
-			}
-			return nil
-		}
-		pkgs = append(pkgs, name)
-		return nil
-	})
-	return pkgs
-}
-
-// isMetaPackage checks if name is a reserved package name that expands to multiple packages.
-func isMetaPackage(name string) bool {
-	return name == "std" || name == "cmd" || name == "all"
-}
-
-// isStandardImportPath reports whether $GOROOT/src/path should be considered
-// part of the standard distribution. For historical reasons we allow people to add
-// their own code to $GOROOT instead of using $GOPATH, but we assume that
-// code will start with a domain name (dot in the first element).
-func isStandardImportPath(path string) bool {
-	i := strings.Index(path, "/")
-	if i < 0 {
-		i = len(path)
-	}
-	elem := path[:i]
-	return !strings.Contains(elem, ".")
-}
-
-// hasPathPrefix reports whether the path s begins with the
-// elements in prefix.
-func hasPathPrefix(s, prefix string) bool {
-	switch {
-	default:
-		return false
-	case len(s) == len(prefix):
-		return s == prefix
-	case len(s) > len(prefix):
-		if prefix != "" && prefix[len(prefix)-1] == '/' {
-			return strings.HasPrefix(s, prefix)
-		}
-		return s[len(prefix)] == '/' && s[:len(prefix)] == prefix
-	}
-}
-
-// treeCanMatchPattern(pattern)(name) reports whether
-// name or children of name can possibly match pattern.
-// Pattern is the same limited glob accepted by matchPattern.
-func treeCanMatchPattern(pattern string) func(name string) bool {
-	wildCard := false
-	if i := strings.Index(pattern, "..."); i >= 0 {
-		wildCard = true
-		pattern = pattern[:i]
-	}
-	return func(name string) bool {
-		return len(name) <= len(pattern) && hasPathPrefix(pattern, name) ||
-			wildCard && strings.HasPrefix(name, pattern)
-	}
-}
diff --git a/vendor/github.com/kisielk/gotool/tool.go b/vendor/github.com/kisielk/gotool/tool.go
deleted file mode 100644
index c7409e11e..000000000
--- a/vendor/github.com/kisielk/gotool/tool.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// Package gotool contains utility functions used to implement the standard
-// "cmd/go" tool, provided as a convenience to developers who want to write
-// tools with similar semantics.
-package gotool
-
-import "go/build"
-
-// Export functions here to make it easier to keep the implementations up to date with upstream.
-
-// DefaultContext is the default context that uses build.Default.
-var DefaultContext = Context{
-	BuildContext: build.Default,
-}
-
-// A Context specifies the supporting context.
-type Context struct {
-	// BuildContext is the build.Context that is used when computing import paths.
-	BuildContext build.Context
-}
-
-// ImportPaths returns the import paths to use for the given command line.
-//
-// The path "all" is expanded to all packages in $GOPATH and $GOROOT.
-// The path "std" is expanded to all packages in the Go standard library.
-// The path "cmd" is expanded to all Go standard commands.
-// The string "..." is treated as a wildcard within a path.
-// When matching recursively, directories are ignored if they are prefixed with
-// a dot or an underscore (such as ".foo" or "_foo"), or are named "testdata".
-// Relative import paths are not converted to full import paths.
-// If args is empty, a single element "." is returned.
-func (c *Context) ImportPaths(args []string) []string {
-	return c.importPaths(args)
-}
-
-// ImportPaths returns the import paths to use for the given command line
-// using default context.
-//
-// The path "all" is expanded to all packages in $GOPATH and $GOROOT.
-// The path "std" is expanded to all packages in the Go standard library.
-// The path "cmd" is expanded to all Go standard commands.
-// The string "..." is treated as a wildcard within a path.
-// When matching recursively, directories are ignored if they are prefixed with
-// a dot or an underscore (such as ".foo" or "_foo"), or are named "testdata".
-// Relative import paths are not converted to full import paths.
-// If args is empty, a single element "." is returned.
-func ImportPaths(args []string) []string {
-	return DefaultContext.importPaths(args)
-}