Make sure that translations used in manifest.json exist in all languages

packagerChrome.py

 # coding: utf-8
 
 # This file is part of the Adblock Plus build tools,
 # Copyright (C) 2006-2013 Eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
@@ skipping 270 matching lines @@
       operaFile = '_locales/%s/messages.json' % operaLocale if operaLocale != None else None
       if chromeFile in files:
         if operaFile != None:
           files[operaFile] = files[chromeFile]
         del files[chromeFile]
 
 def fixMissingTranslations(files):
   # Chrome requires messages used in manifest.json to be given in all languages
   defaults = {}
   data = json.loads(files['_locales/%s/messages.json' % defaultLocale])
-  for match in re.finditer('__MSG_(\S+)__', files['manifest.json']):
-        name = match.group(1)
+  for match in re.finditer(r'__MSG_(\S+)__', files['manifest.json']):
+    name = match.group(1)
     defaults[name] = data[name]
 
   for filename in files:
     if not filename.startswith('_locales/') or not filename.endswith('/messages.json'):
       continue
 
     data = json.loads(files[filename])
     for name, info in defaults.iteritems():
       data.setdefault(name, info)
 
@@ skipping 106 matching lines @@
   def shutdown_server(server):
     time.sleep(10)
     server.shutdown()
   thread.start_new_thread(shutdown_server, (server,))
   server.serve_forever()
 
   if connections[0] == 0:
     print 'Warning: No incoming connections, extension probably not active in the browser yet'
   else:
     print 'Handled %i connection(s)' % connections[0]