Broken test on windows

A change yesterday broke a test on windows:

_StringException: Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 133, in maybeDeferred
    result = f(*args, **kw)
  File "C:\Python27\lib\site-packages\twisted\internet\utils.py", line 191, in runWithWarningsSuppressed
    result = f(*a, **kw)
  File "c:\jenkins\workspace\ubuntuone-client-windows-test\tests\syncdaemon\test_config.py", line 519, in test_get_config_files_path_encoding
    self.assertIn(branch_config, config_files)
  File "C:\Python27\lib\site-packages\twisted\trial\unittest.py", line 316, in failUnlessIn
    % (containee, container))
FailTest: u'tests.syncdaemon.test_config\\UnicodePathsTestCase\\test_get_config_files_path_encod\\a3xq89\\temp\\\xd1and\xfa\\syncdaemon.conf' not in ['c:\\jenkins\\workspace\\ubuntuone-client-windows-test\\ubuntuone\\syncdaemon\\..\\..\\data\\syncdaemon.conf']