Change-Id: Ia5908e94a6bd362099ca3c63f6ffb7e94457131d
GitHub-Last-Rev: 545a40571a912f433546d8c94a9d63459313515d
GitHub-Pull-Request: golang/go#23942
Reviewed-on: https://go-review.googlesource.com/95435Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>