Fix python scripts in src/chrome/

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

Index: chrome/test/data/autofill/merge/tools/flatten.py
diff --git a/chrome/test/data/autofill/merge/tools/flatten.py b/chrome/test/data/autofill/merge/tools/flatten.py
old mode 100644
new mode 100755
index 5b3c3def52564a94bf6ac1fb6fafc63d19b8096f..720329f115283519ea7acb0289700ee39998e104
--- a/chrome/test/data/autofill/merge/tools/flatten.py
+++ b/chrome/test/data/autofill/merge/tools/flatten.py
@@ -1,3 +1,4 @@
+#!/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.
@@ -6,7 +7,6 @@ import sys
 
 def main():
   """Converts a vertical serialization into a compact, horizontal serialization.
-
   """
 
   COLUMNS = ['First name', 'Middle name', 'Last name', 'Email', 'Company name',
@@ -59,7 +59,8 @@ def main():
     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())