Only add --gerrit-patches argument or trybot runs
Only add --gerrit-patches argument or trybot runs

BUG=None
TEST=Ran master locally
Review URL: http://codereview.chromium.org/8304016

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@105631 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build