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cmd/go: quote command line arguments in debug output

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Debug output from go test -x may contain empty arguments.
This CL quotes arguments if needed. E.g. the output of
go test -x is now
  .../6g -o ./_go_.6 -p testmain -complete -D "" -I . -I $WORK ./_testmain.go
which is easier to grasp.

R=golang-dev, bradfitz, minux.ma, r
CC=golang-dev
https://golang.org/cl/8633043
This commit is contained in:
Volker Dobler 2013-04-12 14:05:14 -07:00 committed by Rob Pike
parent ce64f7365f
commit 18ff727487
1 changed files with 1 additions and 0 deletions
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src/cmd/go/build.go
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@ -1306,6 +1306,7 @@ func (b *builder) runOut(dir string, desc string, env []string, cmdargs ...inter
// joinUnambiguously prints the slice, quoting where necessary to make the
// output unambiguous.
// TODO: See issue 5279. The printing of commands needs a complete redo.
func joinUnambiguously(a []string) string {
var buf bytes.Buffer
for i, s := range a {