Fixed #10381 -- Fixed some a machine-dependent test failure after r9921.

The patch is from Russell, but I'm applying it because I want my tests to pass
again (and he doesn't see the failure).

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9964 bcc190cf-cafb-0310-a4f2-bffc1f526a37