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/+/f6fc910b1f87c6d0d8757b9d40557a1caf75d506
  f6fc910 (iannucci@chromium.org)
      [recipes.py] Use exec on *nix and ignore signals on Windows.

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: I5d578c9f7bbcfcba798914943e70707280da2c78
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2405639Reviewed-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>