Color `diff` output in `tests/functional/lang` tests (cherry picked from commit 1dc55c0f2f034bce6e3de4a5cda96d686b10a7f8) Change-Id: Ie9b3fc3446bd3caa0fd8885de88639516a2ff862
Color `diff` output in `tests/functional/lang` tests (cherry picked from commit 1dc55c0f2f034bce6e3de4a5cda96d686b10a7f8) Change-Id: Ie9b3fc3446bd3caa0fd8885de88639516a2ff862