cmd/go: implement -x correctly for 'go vet', 'go fmt', and so on

Fixes #5676.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13250047

diff --git a/src/cmd/go/main.go b/src/cmd/go/main.go
index 5fab64d4eb72ed2cbbeb729644d3e80a7d0bb422..5228d0a9c26581cf732908229a4261b67a9917df 100644 (file)
--- a/src/cmd/go/main.go
+++ b/src/cmd/go/main.go
@@ -360,7 +360,7 @@ func exitIfErrors() {
 
 func run(cmdargs ...interface{}) {
        cmdline := stringList(cmdargs...)
-       if buildN || buildV {
+       if buildN || buildX {
                fmt.Printf("%s\n", strings.Join(cmdline, " "))
                if buildN {
                        return