Fix support for --bot bot1,bot2 -t foo

tests/trychange_unittest.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.
 
 """Unit tests for trychange.py."""
 
 import os
 import sys
 import unittest
@@ skipping 44 matching lines @@
       'subprocess2', 'sys', 'tempfile', 'urllib',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange, members)
 
 
 class TryChangeSimpleTest(unittest.TestCase):
   # Doesn't require supermox to run.
   def test_flags(self):
     cmd = [
-      '--bot', 'bot1',
+      '--bot', 'bot1,bot2',
       '--testfilter', 'test1',
-      '--bot', 'bot2',
       '--testfilter', 'test2',
       '--user', 'joe',
       '--email', 'joe@example.com',
     ]
     options, args = trychange.gen_parser(None).parse_args(cmd)
     self.assertEquals([], args)
     # pylint: disable=W0212
     values = trychange._ParseSendChangeOptions(options)
     self.assertEquals(
         [
@@ skipping 68 matching lines @@
     trychange.scm.GIT.GetEmail(self.fake_root).AndReturn('georges@example.com')
     self.mox.ReplayAll()
     git = trychange.GIT(self.options, self.fake_root, self.options.files)
     self.assertEqual(git.GetFileNames(), self.expected_files)
     self.assertEqual(git.checkout_root, self.fake_root)
     self.assertEqual(git.GenerateDiff(), 'A diff')
 
 
 if __name__ == '__main__':
   unittest.main()