Updates #30228

Change-Id: I6a38269f322d906702921b3879ff48c8a96ab511
Reviewed-on: https://go-review.googlesource.com/c/162831
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>