metrics_pdd_hook: allow committer to specify reason if PDD does not need to be updated

e.g. if metrics.proto was merely reformatted,
or only comments were changed.

Bug: 140895523
Test: create test CL that changes metrics.proto
Change-Id: Ia0430d2870097c5d8a4d53c57f853ffb184b41b3
1 file changed
tree: 242383fcfc6670b4ea24b43964f8cedfdab69441
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg