[1.0.X] Fixed the test added for #9005 to use the e.args[0] instead of...

[1.0.X] Fixed the test added for #9005 to use the e.args[0] instead of e.message. Exceptions didn't have 'message' before Python 2.5, and it was deprecated as of Python 2.6. args[0] works without error or DeprecationWarning from Python 2.3 through 2.6. 

r10394 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10395 bcc190cf-cafb-0310-a4f2-bffc1f526a37