Really fix system logging tests on MacOS* :-)
Really fix system logging tests on MacOS* :-)

* Debugging this kind of stuff via Travis CI is a horrible waste
  of time so I took the effort to set up a testing environment
  on a MacOS system that I have access to. This showed that the
  level of the log messages was the problem, not timing issues.

xolox/python-coloredlogs,xolox/python-coloredlogs