gddo-server: enable log when running on GCE.

This fixes error when deploying to local machine.

Change-Id: I5d61c31f0c815ab3dfcaaaedf51903f7e1ec4954
Reviewed-on: https://go-review.googlesource.com/22804
Reviewed-by: Andrew Gerrand <adg@golang.org>
1 file changed