Fix python scripts in src/ppapi/

ppapi/generators/idl_release.py

-#!/usr/bin/python
-#
+#!/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.
 
 """
 IDLRelease for PPAPI
 
 This file defines the behavior of the AST namespace which allows for resolving
 a symbol as one or more AST nodes given a Release or range of Releases.
 """
@@ skipping 223 matching lines @@
 
   assert not Foo23.InRange('M13', 'M14')
   assert not Foo23.InRange('M13A', 'M14')
   assert not Foo23.InRange('M14', 'M15')
   assert Foo23.InRange('M15', 'M16')
   assert Foo23.InRange('M14', 'M15A')
   assert Foo23.InRange('M15B', 'M17')
   assert not Foo23.InRange('M16', 'M17')
   print "TestReleaseNode - Passed"
 
+
 def TestReleaseListWarning():
   FooXX = IDLRelease(None, None)
   Foo1X = IDLRelease('M14', None)
   Foo23 = IDLRelease('M15', 'M16')
   Foo45 = IDLRelease('M17', 'M18')
 
   # Add nodes out of order should fail
   ReportClear()
   releases = IDLReleaseList()
   assert releases.AddNode(Foo23)
   assert releases.AddNode(Foo45)
   assert warning
   print "TestReleaseListWarning - Passed"
 
+
 def TestReleaseListError():
   FooXX = IDLRelease(None, None)
   Foo1X = IDLRelease('M14', None)
   Foo23 = IDLRelease('M15', 'M16')
   Foo45 = IDLRelease('M17', 'M18')
 
   # Add nodes out of order should fail
   ReportClear()
   releases = IDLReleaseList()
   assert releases.AddNode(FooXX)
   assert releases.AddNode(Foo23)
   assert not releases.AddNode(Foo1X)
   assert error
   print "TestReleaseListError - Passed"
 
+
 def TestReleaseListOK():
   FooXX = IDLRelease(None, None)
   Foo1X = IDLRelease('M14', None)
   Foo23 = IDLRelease('M15', 'M16')
   Foo45 = IDLRelease('M17', 'M18')
 
   # Add nodes in order should work
   ReportClear()
   releases = IDLReleaseList()
   assert releases.AddNode(FooXX)
@@ skipping 15 matching lines @@
   assert releases.FindRange('M16','M17') == []
   assert releases.FindRange(None, None) == [FooXX, Foo1X, Foo23, Foo45]
 
   # Verify we can find the correct versions
   print "TestReleaseListOK - Passed"
 
 
 def TestReleaseMap():
   print "TestReleaseMap- Passed"
 
+
 def Main(args):
   TestReleaseNode()
   TestReleaseListWarning()
   TestReleaseListError()
   TestReleaseListOK()
   print "Passed"
   return 0
 
+
 if __name__ == '__main__':
   sys.exit(Main(sys.argv[1:]))
-