test failure on python 3.4

[Domen Kožar]

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File "/tmp/nix-build-python3.4-zodb-4.0.1.drv-0/ZODB-4.0.1/src/ZODB/tests/testDB.py", line 145, in ZODB.tests.testDB.connectionDebugInfo
Failed example:
    pprint.pprint(sorted(info, key=lambda i: str(i['opened'])), width=1)
Expected:
    [{'before': None,
      'info': 'test info (2)',
      'opened': '2008-12-04T20:40:44Z (1.40s)'},
     {'before': '\x03zY\xd8\xc0m9\xdd',
      'info': ' (0)',
      'opened': '2008-12-04T20:40:45Z (0.30s)'},
     {'before': None,
      'info': ' (0)',
      'opened': None}]
Got:
    [{'before': None,
      'info': 'test '
              'info '
              '(2)',
      'opened': '2008-12-04T20:40:44Z '
                '(1.40s)'},
     {'before': '\x03zY\xd8\xc0m9\xdd',
      'info': ' '
              '(0)',
      'opened': '2008-12-04T20:40:45Z '
                '(0.30s)'},
     {'before': None,
      'info': ' '
              '(0)',
      'opened': None}]