Change-Id: Iaabbfe5a4c1bbedd19d4087f1b79e5a38bdd3878
GitHub-Last-Rev: 55c91fc19074dacc66623aa7ff2286b11ccd5340
GitHub-Pull-Request: golang/go#29752
Reviewed-on: https://go-review.googlesource.com/c/157958Reviewed-by: Ian Lance Taylor <iant@golang.org>