Fix python scripts in src/tools/

tools/code_coverage/croc_test.py

Index: tools/code_coverage/croc_test.py
diff --git a/tools/code_coverage/croc_test.py b/tools/code_coverage/croc_test.py
old mode 100644
new mode 100755
index 36fc546e768edeb332fe1ea39fd307ca7243cc2c..7c2521ca3dfd6be9d143c4750813852ebe490774
--- a/tools/code_coverage/croc_test.py
+++ b/tools/code_coverage/croc_test.py
@@ -1,33 +1,7 @@
-#!/usr/bin/python2.4
-#
-# Copyright 2009, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#        * Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-#        * Redistributions in binary form must reproduce the above
-#     copyright notice, this list of conditions and the following disclaimer
-#     in the documentation and/or other materials provided with the
-#     distribution.
-#        * Neither the name of Google Inc. nor the names of its
-#     contributors may be used to endorse or promote products derived from
-#     this software without specific prior written permission.
-#
-#     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#     OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#     LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#!/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.
 
 """Unit tests for Crocodile."""
 
@@ -36,8 +10,6 @@ import StringIO
 import unittest
 import croc
 
-#------------------------------------------------------------------------------
-
 
 class TestCoverageStats(unittest.TestCase):
   """Tests for croc.CoverageStats."""
@@ -62,8 +34,6 @@ class TestCoverageStats(unittest.TestCase):
     c.Add({'a': 4, 'd': 3})
     self.assertEqual(c, {'a': 5, 'b': 0, 'c': 5, 'd': 3})
 
-#------------------------------------------------------------------------------
-
 
 class TestCoveredFile(unittest.TestCase):
   """Tests for croc.CoveredFile."""
@@ -144,8 +114,6 @@ class TestCoveredFile(unittest.TestCase):
         'files_covered': 1,
     })
 
-#------------------------------------------------------------------------------
-
 
 class TestCoveredDir(unittest.TestCase):
   """Tests for croc.CoveredDir."""
@@ -193,8 +161,6 @@ class TestCoveredDir(unittest.TestCase):
     d2.subdirs = {'/a/b/d': d4, '/a/b/e': d5}
     self.assertEqual(d1.GetTree(), 'a/\n  b/\n    d/\n    e/\n  c/')
 
-#------------------------------------------------------------------------------
-
 
 class TestCoverage(unittest.TestCase):
   """Tests for croc.Coverage."""
@@ -787,7 +753,6 @@ GetStat('nosuch') = 42
   #     ParseLcovFile()
   #     PrintTree()
 
-#------------------------------------------------------------------------------
 
 if __name__ == '__main__':
   unittest.main()