Fix test.py for Python 2.7.

tools/test.py

 #!/usr/bin/env python
 #
 # 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
@@ skipping 454 matching lines @@
     prev_error_mode = ctypes.windll.kernel32.SetErrorMode(mode)
   except ImportError:
     pass
   return prev_error_mode
 
 def RunProcess(context, timeout, args, **rest):
   if context.verbose: print "#", " ".join(args)
   popen_args = args
   prev_error_mode = SEM_INVALID_VALUE
   if utils.IsWindows():
-    popen_args = '"' + subprocess.list2cmdline(args) + '"'
+    popen_args = subprocess.list2cmdline(args)
     if context.suppress_dialogs:
       # Try to change the error mode to avoid dialogs on fatal errors. Don't
       # touch any existing error mode flags by merging the existing error mode.
       # See http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx.
       error_mode = SEM_NOGPFAULTERRORBOX
       prev_error_mode = Win32SetErrorMode(error_mode)
       Win32SetErrorMode(error_mode | prev_error_mode)
   process = subprocess.Popen(
     shell = utils.IsWindows(),
     args = popen_args,
@@ skipping 1071 matching lines @@
     for entry in timed_tests[:20]:
       t = FormatTime(entry.duration)
       sys.stderr.write("%4i (%s) %s\n" % (index, t, entry.GetLabel()))
       index += 1
 
   return result
 
 
 if __name__ == '__main__':
   sys.exit(Main())