Updates #14892

Change-Id: I640c6e1635ccdf611f219521a7d297a9885c4cb3
Reviewed-on: https://go-review.googlesource.com/31446
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>