Add windows to status variable list.

tools/testrunner/local/utils.py

 # Copyright 2012 the V8 project authors. 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
@@ skipping 47 matching lines @@
   system = platform.system()
   if system == 'Linux':
     return 'linux'
   elif system == 'Darwin':
     return 'macos'
   elif system.find('CYGWIN') >= 0:
     return 'cygwin'
   elif system == 'Windows' or system == 'Microsoft':
     # On Windows Vista platform.system() can return 'Microsoft' with some
     # versions of Python, see http://bugs.python.org/issue1082
-    return 'win32'
+    return 'windows'
   elif system == 'FreeBSD':
     return 'freebsd'
   elif system == 'OpenBSD':
     return 'openbsd'
   elif system == 'SunOS':
     return 'solaris'
   elif system == 'NetBSD':
     return 'netbsd'
   else:
     return None
@@ skipping 19 matching lines @@
 
 
 def GuessWordsize():
   if '64' in platform.machine():
     return '64'
   else:
     return '32'
 
 
 def IsWindows():
-  return GuessOS() == 'win32'
+  return GuessOS() == 'windows'