This is useful to see exact command used to communicate with buildbucket and
debug any triggering issues.

R=machenbach@chromium.org

Change-Id: I1630485ed128f757364d9c1f62b7f1d663db2ece
Reviewed-on: https://chromium-review.googlesource.com/c/1325371Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57371}