For golang/go#61583

Change-Id: Ifaf298ce130ad6af633e11b34a1496f36344051a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/513099
Auto-Submit: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>