It's broken on 10.5.2.

TEST=gcl works all the time on Mac
TBR=nsylvain

Review URL: http://codereview.chromium.org/3169044

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@57381 0039d316-1c4b-4281-b951-d872f2087c98