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

The build that created this CL was
https://ci.chromium.org/b/8835542085909673889

recipe_engine:
https://chromium.googlesource.com/infra/luci/recipes-py.git/+/651ca1c8b484908c69291d6fe2b50c1e2d93507d
  651ca1c (yuanjunh@google.com)
      If None, assign devnull to stdin when starting subprocess

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

R=iannucci@chromium.org

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ibada9eac714eafb21ce0619bbfa112e44dbafd3c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3171641
Commit-Queue: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Recipe Roller <recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com>