Workaround to disable Progress() on buildbot by disabling it on --verbose.

sys.stdout.isatty() is True even on buildbot.
Otherwise, logs can't be untangled when using --jobs.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/3596006

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@61552 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -716,7 +716,8 @@ solutions = [
     revision_overrides = self._EnforceRevisions()
     pm = None
     # Disable progress for non-tty stdout.
-    if command in ('update', 'revert') and sys.stdout.isatty():
+    if (command in ('update', 'revert') and sys.stdout.isatty() and not
+        self._options.verbose):
       pm = Progress('Syncing projects', 1)
     work_queue = gclient_utils.ExecutionQueue(self._options.jobs, pm)
     for s in self.dependencies: