Add file name and line number to trychange's log output.

trychange.py

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 """Client-side script to send a try job to the try server. It communicates to
 the try server by either writting to a svn repository or by directly connecting
 to the server by HTTP.
 """
 
 import datetime
@@ skipping 585 matching lines @@
   group.add_option("-S", "--svn_repo",
                    metavar="SVN_URL",
                    help="SVN url to use to write the changes in; --use_svn is "
                         "implied when using --svn_repo")
   parser.add_option_group(group)
 
   options, args = parser.parse_args(argv)
   if len(args) == 1 and args[0] == 'help':
     parser.print_help()
 
+  LOG_FORMAT = '%(levelname)s %(filename)s(%(lineno)d): %(message)s'
   if not swallow_exception:
     if options.verbose == 0:
-      logging.basicConfig(level=logging.WARNING)
+      logging.basicConfig(level=logging.WARNING, format=LOG_FORMAT)
     elif options.verbose == 1:
-      logging.basicConfig(level=logging.INFO)
+      logging.basicConfig(level=logging.INFO, format=LOG_FORMAT)
     elif options.verbose > 1:
-      logging.basicConfig(level=logging.DEBUG)
+      logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT)
 
   logging.debug(argv)
 
   # Strip off any @ in the user, otherwise svn gets confused.
   options.user = options.user.split('@', 1)[0]
 
   if options.rietveld_url:
     # Try to extract the review number if possible and fix the protocol.
     if not '://' in options.rietveld_url:
       options.rietveld_url = 'http://' + options.rietveld_url
@@ skipping 112 matching lines @@
   except (InvalidScript, NoTryServerAccess), e:
     if swallow_exception:
       return 1
     print e
     return 1
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(TryChange(None, [], False))