This follows up CL95235

Change-Id: I62652654e5bb46d2f8f37af468e1fbcc1835bb8a
Reviewed-on: https://go-review.googlesource.com/95295Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>