Set svn:executable bit on scripts that are executable.

build/cp.py

Index: build/cp.py
diff --git a/build/cp.py b/build/cp.py
old mode 100644
new mode 100755
index 7dfeb3846b3c1e387f71b5244f435e9940cd4a2e..d0c46f412d6ddfe5cd00b675395e8af81a95ba5e
--- a/build/cp.py
+++ b/build/cp.py
@@ -1,18 +1,21 @@
-#!/usr/bin/python
-# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+#!/usr/bin/env python
+# Copyright (c) 2012 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 shutil, sys;
-
-""" Copy File.
+"""Copy a file.
 
 This module works much like the cp posix command - it takes 2 arguments:
 (src, dst) and copies the file with path |src| to |dst|.
 """
 
+import shutil
+import sys
+
+
 def Main(src, dst):
   return shutil.copyfile(src, dst)
 
+
 if __name__ == '__main__':
   sys.exit(Main(sys.argv[1], sys.argv[2]))