git-codereview: log stderr and stdout from successful commands
git-codereview: log stderr and stdout from successful commands

The reason for the failures in golang/go#49899 is not clear.
Perhaps the stderr output will shed some light on what is happening.

For golang/go#49899

Change-Id: I37c6339c8ebd4a37e4ff5b3b813572193903cee4
Reviewed-on: https://go-review.googlesource.com/c/review/+/368174
Trust: Bryan Mills <1c8aad60184261ccede67f5c63a0d2a3bf3c9ff4@google.com>
Run-TryBot: Bryan Mills <1c8aad60184261ccede67f5c63a0d2a3bf3c9ff4@google.com>
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

golang/review