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/+/947bd8d8a407054baf1e0074c818d0620d32cf1d
  947bd8d (yiwzhang@google.com)
      [warning] Introduce warning client and warning module

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: I498cfa0b5931b92599cd649732a0b4993032ec90
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2398784Reviewed-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>