experimental/tools/gerrit-change-id-to-number: cleanup

No-Try: true
Change-Id: I684e681ec38769f5c9b5d66c0190fb08f28ff367
Reviewed-on: https://skia-review.googlesource.com/c/174581
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
1 file changed