Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 926, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1126, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 691, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 713, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1141, in ignore_pipe
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/xmloutput/xml_errors.py", line 72, in xml_error_handling
    exitcode = report_exception(sys.exc_info(), sys.stderr)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/xmloutput/xml_errors.py", line 59, in report_exception
    err_file.write(str(XMLError(exc_object)))
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/xmloutput/xml_errors.py", line 30, in __str__
    _escape_cdata(str(e))
TypeError: _escape_cdata() takes exactly 2 arguments (1 given)