GitHub-Last-Rev: ff68319f4c46271ddb927d176756962a3a2b4332
GitHub-Pull-Request: golang/go#23874
Change-Id: I7242c5cc35f04e23d807f5e91180c4ef510e7d1a
Reviewed-on: https://go-review.googlesource.com/94840Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>