tree 5d4a1d7734ac58561a1b5e2a999b3de208f3c320
parent 266f74c88844aa58189af4343aac2467c4b105f0
author Eli Ribble <eliribble@google.com> 1556846502 -0700
committer Eli Ribble <eliribble@google.com> 1556846502 -0700

Ignore submodules when calculating 'git diff-files'

This allows projects to include submodules inside of
projects that use repo without repo incorrectly believing
the area is dirty just because a submodule has updates.
This is in line with git porcelain commands which generally
require a commandline flag to include submodules (git add,
git rebase).

Change-Id: Ide8a292162a42ab35145b5c4ca8ca0d020cdfe81