Fix secure shell test.

chrome/test/functional/secure_shell.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 import glob
 import logging
 import os
 import time
 
@@ skipping 80 matching lines @@
     # Type 'yes' and enter password
     self.SendKeysToHterm('yes\\n', tab_index=1)
     self.WaitForHtermText('Password:', tab_index=1,
         msg='Did not get password prompt')
     self.SendKeysToHterm('test0000\\n', tab_index=1)
     self.WaitForHtermText('chronos@localhost $', tab_index=1,
         msg='Did not get shell login prompt')
 
     # Type 'exit' and close the tab
     self.SendKeysToHterm('exit\\n', tab_index=1)
-    self.WaitForHtermText('exited with status code 0', tab_index=1,
+    # Check for only 'code 0' since that is what indicates that we exited
+    # successfully. Checking for more stringage causes flakes since the exit
+    # string does change at times.
+    self.WaitForHtermText('code 0', tab_index=1,
         msg='Did not get correct exit message')
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()