o Minor features (git scripts):
    - Make git-push-all.sh skip unchanged branches when pushing to upstream.
      The script already skipped unchanged test branches.
      Closes ticket 32216.
  o Minor bugfixes (git scripts):
    - Avoid sleeping before the last push in git-push-all.sh.
      Closes ticket 32216.
    - Forward all unrecognised arguments in git-push-all.sh to git push.
      Closes ticket 32216.