This disables the external diff driver. I have p4merge setup as the default git diff tool, so out deploy script always fails to detect any local changes and is uploaded incorrectly as a "clean" version.
This disables the external diff driver. I have p4merge setup as the default git diff tool, so out deploy script always fails to detect any local changes and is uploaded incorrectly as a "clean" version.

Review-Url: https://codereview.chromium.org/2655333002

catapult-project/catapult,sahiljain/catapult,catapult-project/catapult,catapult-project/catapult-csm,benschmaus/catapult,catapult-project/catapult-csm,sahiljain/catapult,sahiljain/catapult,catapult-project/catapult-csm,catapult-project/catapult-csm,catapult-project/catapult-csm,benschmaus/catapult,sahiljain/catapult,catapult-project/catapult,sahiljain/catapult,benschmaus/catapult,benschmaus/catapult,catapult-project/catapult,benschmaus/catapult,catapult-project/catapult,benschmaus/catapult,sahiljain/catapult,catapult-project/catapult,benschmaus/catapult,catapult-project/catapult,catapult-project/catapult-csm,catapult-project/catapult-csm