Behavior improved, file expects old worse behavior.
Update file to expect newer, better output.

Fixes #30912.

Change-Id: I410bdaacdb77a4620656753c8c0dc2d4d5378985
Reviewed-on: https://go-review.googlesource.com/c/go/+/168377
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>