flaky: test_touch_file_with_offset_seconds

[David Britton]

Regression

landscape.lib.tests.test_fs.TouchFileTest.test_touch_file_with_offset_seconds (from )

Failing for the past 1 build (Since Failed#296 )
Took 63 ms.
edit description
Stacktrace

_StringException: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 138, in maybeDeferred
    result = f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/_utilspy3.py", line 41, in runWithWarningsSuppressed
    reraise(exc_info[1], exc_info[2])
  File "/usr/lib/python2.7/dist-packages/twisted/internet/_utilspy3.py", line 37, in runWithWarningsSuppressed
    result = f(*a, **kw)
  File "/var/jenkins/workspace/landscape-client-test/label/raring-client/landscape/tests/mocker.py", line 161, in test_method_wrapper
    self.mocker.verify()
  File "/var/jenkins/workspace/landscape-client-test/label/raring-client/landscape/tests/mocker.py", line 579, in verify
    raise AssertionError(os.linesep.join(message))
AssertionError: [Mocker] Unmet expectations:

=> os.utime('/tmp/tmpHsPVLC', (1379949282L, 1379949282L))
 - Performed fewer times than expected.

This fails occasionally on jenkins. Please change the expectation that it can be called as many times as necessary, or something