test_kill_process_with_sigkill failing on precise

https://ci.lscape.net/view/Landscape%20Client/job/landscape-client-test/label=precise-client/251/testReport/

landscape.tests.test_watchdog.DaemonTest.test_kill_process_with_sigkill:
_StringException: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/utils.py", line 201, in runWithWarningsSuppressed
    reraise(exc_info[1], exc_info[2])
  File "/usr/lib/python2.7/dist-packages/twisted/internet/utils.py", line 197, in runWithWarningsSuppressed
    result = f(*a, **kw)
  File "/var/jenkins/workspace/landscape-client-test/label/precise-client/landscape/tests/test_watchdog.py", line 658, in test_kill_process_with_sigkill
    self.assertEqual(open(output_filename).read(), "RUN")
  File "/usr/lib/python2.7/dist-packages/twisted/trial/_synctest.py", line 437, in assertEqual
    super(_Assertions, self).assertEqual(first, second, msg)
  File "/usr/lib/python2.7/unittest/case.py", line 511, in assertEqual
    assertion_func(first, second, msg=msg)
  File "/usr/lib/python2.7/unittest/case.py", line 504, in _baseAssertEqual
    raise self.failureException(msg)
FailTest: '' != 'RUN'