This is an automated CL created by the recipe roller. This CL rolls
recipe changes from upstream projects (recipe_engine) into this repository.

recipe_engine:
https://chromium.googlesource.com/infra/luci/recipes-py.git/+/51dda3f28966704ae269ac7b7a7d485784d1c472
  51dda3f (iannucci@chromium.org)
      [buildbucket] Properly handle set_output_gitiles_commit in luci...

More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug.

TBR=iannucci@chromium.org

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ieb513b225e97465660fb6f41a5d834f9f2748fac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2657030Reviewed-by: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>