cmd/go: use new vet location

Change-Id: I7d96ebcca5954152edb821bb41b6047a1c622949
Reviewed-on: https://go-review.googlesource.com/10731Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

src/cmd/go/pkg.go

@@ -411,9 +411,9 @@ var goTools = map[string]targetDir{
 	"cmd/pack":                             toTool,
 	"cmd/pprof":                            toTool,
 	"cmd/trace":                            toTool,
+	"cmd/vet":                              toTool,
 	"cmd/yacc":                             toTool,
 	"golang.org/x/tools/cmd/godoc":         toBin,
-	"golang.org/x/tools/cmd/vet":           toTool,
 	"code.google.com/p/go.tools/cmd/cover": stalePath,
 	"code.google.com/p/go.tools/cmd/godoc": stalePath,
 	"code.google.com/p/go.tools/cmd/vet":   stalePath,

src/cmd/go/tool.go

@@ -67,10 +67,6 @@ func tool(toolName string) string {
 }
 
 func isInGoToolsRepo(toolName string) bool {
-	switch toolName {
-	case "vet":
-		return true
-	}
 	return false
 }
 

src/cmd/go/vet.go

@@ -17,7 +17,7 @@ var cmdVet = &Command{
 	Long: `
 Vet runs the Go vet command on the packages named by the import paths.
 
-For more about vet, see 'godoc golang.org/x/tools/cmd/vet'.
+For more about vet, see 'go doc cmd/vet'.
 For more about specifying packages, see 'go help packages'.
 
 To run the vet tool with specific options, run 'go tool vet'.