Add --help and --verbose options to update-w3c-test-expectations.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Fetches a copy of the latest state of a W3C test repository and commits.
 
 If this script is given the argument --auto-update, it will also attempt to
 upload a CL, triggery try jobs, and make any changes that are required for
 new failing tests before committing.
 """
@@ skipping 350 matching lines @@
             if test_path is None:
                 continue
             test_dir = self.fs.dirname(test_path)
             if test_dir in directory_to_owner:
                 email_addresses.add(directory_to_owner[test_dir])
         return sorted(email_addresses)
 
     def write_test_expectations(self):
         self.print_('## Adding test expectations lines to LayoutTests/TestExpectations.')
         script_path = self.path_from_webkit_base('Tools', 'Scripts', 'update-w3c-test-expectations')
-        self.run([self.host.executable, script_path])
+        self.run([self.host.executable, script_path, '--verbose'])
         message = '\'Modifies TestExpectations and/or downloads new baselines for tests\''
         self.check_run(['git', 'commit', '-a', '-m', message])
         self.git_cl.run(['upload', '-m', message, '--rietveld'])