Add comments to DEPS asking people to update .gitignore.

No idea if this'll help, but it probably can't hurt.

BUG=none
TEST=none


Review URL: https://chromiumcodereview.appspot.com/9116028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138032 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed