go/build: use back quotes for regular expression

R=adg
CC=golang-dev
https://golang.org/cl/4643045

diff --git a/src/pkg/go/build/build.go b/src/pkg/go/build/build.go
index d880746fe43e10927b5b52daf84085c54eb1111d..585489279fb88284daeb5b25603fecf56563b2bc 100644 (file)
--- a/src/pkg/go/build/build.go
+++ b/src/pkg/go/build/build.go
@@ -348,7 +348,7 @@ func (b *build) gccArgs(args ...string) []string {
        return append(a, args...)
 }
 
-var cgoRe = regexp.MustCompile("[/\\:]")
+var cgoRe = regexp.MustCompile(`[/\\:]`)
 
 func (b *build) cgo(cgofiles []string) (outGo, outObj []string) {
        // cgo