gerrit-verifier: Echo 'Running buildifier check...' to the console

There is already a similar log when running the google-code-format
check. Having one for buildifier makes it consistent.

Also log the buildifier version to the console, to make it easier to
see if something has gone wrong (i.e. an unexpected version is used).

Change-Id: I014e67d8cf1228bcb88d3724ee2fcd47504d5de6
1 file changed
tree: b40b514917ea29a09202349b3ed094c0de48e7e5
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore