Fix python scripts in src/chrome/

chrome/test/data/autofill/merge/tools/flatten.py

+#!/usr/bin/env python
 # Copyright (c) 2011 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 sys
 
 def main():
   """Converts a vertical serialization into a compact, horizontal serialization.
-
   """
 
   COLUMNS = ['First name', 'Middle name', 'Last name', 'Email', 'Company name',
              'Address line 1', 'Address line 2', 'City', 'State', 'ZIP code',
              'Country', 'Phone']
 
   if len(sys.argv) != 2:
     print "Usage: python flatten.py <path/to/serialized_profiles>"
     return
 
@@ skipping 32 matching lines @@
   column_widths = []
   for column in transposed:
     widths = [len(value) for value in column]
     column_widths.append(max(widths))
   column_formats = ["{0:<" + str(width) + "}" for width in column_widths]
 
   for profile in profiles:
     profile_format = zip(column_formats, profile)
     profile = [format_.format(value) for (format_, value) in profile_format]
     print " | ".join(profile)
+  return 0
 
 
 if __name__ == '__main__':
-  main()
+  sys.exit(main())