all: add go-diff dependency and update vendor

1 files changed, 23 insertions, 0 deletions

diff --git a/vendor/github.com/sergi/go-diff/diffmatchpatch/mathutil.go b/vendor/github.com/sergi/go-diff/diffmatchpatch/mathutil.go
new file mode 100644
index 000000000..aed242bc6
--- /dev/null
+++ b/vendor/github.com/sergi/go-diff/diffmatchpatch/mathutil.go
@@ -0,0 +1,23 @@
+// Copyright (c) 2012-2016 The go-diff authors. All rights reserved.
+// https://github.com/sergi/go-diff
+// See the included LICENSE file for license details.
+//
+// go-diff is a Go implementation of Google's Diff, Match, and Patch library
+// Original library is Copyright (c) 2006 Google Inc.
+// http://code.google.com/p/google-diff-match-patch/
+
+package diffmatchpatch
+
+func min(x, y int) int {
+	if x < y {
+		return x
+	}
+	return y
+}
+
+func max(x, y int) int {
+	if x > y {
+		return x
+	}
+	return y
+}