Make sure to remove color output from patches uploaded for try jobs (and other

things).

Review URL: http://codereview.chromium.org/9442028

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@123329 0039d316-1c4b-4281-b951-d872f2087c98

scm.py

@@ -343,7 +343,7 @@ class GIT(object):
     files, usually in the prospect to apply the patch for a try job."""
     if not branch:
       branch = GIT.GetUpstreamBranch(cwd)
-    command = ['diff', '-p', '--no-prefix', '--no-ext-diff',
+    command = ['diff', '-p', '--no-color', '--no-prefix', '--no-ext-diff',
                branch + "..." + branch_head]
     if not full_move:
       command.append('-C')