git-cl: accept --force for -f everywhere
git-cl: accept --force for -f everywhere

TBR=tandrii@chromium.org

Change-Id: I2feddebee6d667c6c60ec1a306d175adff262be5
Reviewed-on: https://chromium-review.googlesource.com/580362
Reviewed-by: Aaron Gable <bbed39beedae4cdb499af742d2fcd6c63934d93b@chromium.org>
Commit-Queue: Aaron Gable <bbed39beedae4cdb499af742d2fcd6c63934d93b@chromium.org>

CoherentLabs/depot_tools,CoherentLabs/depot_tools