go.mod, vendor: update (#3358)

* go.mod, vendor: remove unnecessary dependencies

Commands:
1. go mod tidy
2. go mod vendor

* go.mod, vendor: update cloud.google.com/go

Commands:
1. go get -u cloud.google.com/go
2. go mod tidy
3. go mod vendor

* go.mod, vendor: update cloud.google.com/*

Commands:
1. go get -u cloud.google.com/storage cloud.google.com/logging
2. go mod tidy
3. go mod vendor

* go.mod, .golangci.yml, vendor: update *lint*

Commands:
1. go get -u golang.org/x/tools github.com/golangci/golangci-lint@v1.47.0
2. go mod tidy
3. go mod vendor
4. edit .golangci.yml to suppress new errors (resolved in the same PR later)

* all: fix lint errors

hash.go: copy() recommended by gosimple
parse.go: ent is never nil
verifier.go: signal.Notify() with unbuffered channel is bad. Have no idea why.

* .golangci.yml: adjust godot rules

check-all is deprecated, but still work
if you're hesitating too - I'll remove this commit

1 files changed, 48 insertions, 0 deletions

diff --git a/vendor/github.com/ettle/strcase/unicode.go b/vendor/github.com/ettle/strcase/unicode.go
new file mode 100644
index 000000000..b75e25a51
--- /dev/null
+++ b/vendor/github.com/ettle/strcase/unicode.go
@@ -0,0 +1,48 @@
+package strcase
+
+import "unicode"
+
+// Unicode functions, optimized for the common case of ascii
+// No performance lost by wrapping since these functions get inlined by the compiler
+
+func isUpper(r rune) bool {
+	return unicode.IsUpper(r)
+}
+
+func isLower(r rune) bool {
+	return unicode.IsLower(r)
+}
+
+func isNumber(r rune) bool {
+	if r >= '0' && r <= '9' {
+		return true
+	}
+	return unicode.IsNumber(r)
+}
+
+func isSpace(r rune) bool {
+	if r == ' ' || r == '\t' || r == '\n' || r == '\r' {
+		return true
+	} else if r < 128 {
+		return false
+	}
+	return unicode.IsSpace(r)
+}
+
+func toUpper(r rune) rune {
+	if r >= 'a' && r <= 'z' {
+		return r - 32
+	} else if r < 128 {
+		return r
+	}
+	return unicode.ToUpper(r)
+}
+
+func toLower(r rune) rune {
+	if r >= 'A' && r <= 'Z' {
+		return r + 32
+	} else if r < 128 {
+		return r
+	}
+	return unicode.ToLower(r)
+}