Fix many* python scripts in src/

chrome_frame/combine_libs.py

Index: chrome_frame/combine_libs.py
diff --git a/chrome_frame/combine_libs.py b/chrome_frame/combine_libs.py
old mode 100644
new mode 100755
index 5a2efec273be6a720b2cdc09acec72590c0c187c..8f2380cd0323101bd18317d10a9681587373bb83
--- a/chrome_frame/combine_libs.py
+++ b/chrome_frame/combine_libs.py
@@ -1,4 +1,5 @@
-# Copyright (c) 2010 The Chromium Authors. All rights reserved.
+#!/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.
 
@@ -108,7 +109,8 @@ def Main():
     del os.environ['VS_UNICODE_OUTPUT']
 
   CombineLibraries(output, remove_re, args)
+  return 0
 
 
 if __name__ == '__main__':
-  Main()
+  sys.exit(Main())