Fix logging inconsistency for mock python app
Fix logging inconsistency for mock python app

Test Plan: n/a

Reviewers: aquamatthias, jeschkies, jenkins

Reviewed By: aquamatthias, jeschkies, jenkins

Subscribers: marathon-team

Differential Revision: https://phabricator.mesosphere.com/D619

natemurthy/marathon,mesosphere/marathon,natemurthy/marathon,janisz/marathon,janisz/marathon,guenter/marathon,Caerostris/marathon,meln1k/marathon,meln1k/marathon,meln1k/marathon,Caerostris/marathon,gsantovena/marathon,mesosphere/marathon,gsantovena/marathon,mesosphere/marathon,guenter/marathon,guenter/marathon,mesosphere/marathon,Caerostris/marathon,Caerostris/marathon,guenter/marathon,janisz/marathon,natemurthy/marathon,janisz/marathon,Caerostris/marathon,janisz/marathon,gsantovena/marathon,gsantovena/marathon,gsantovena/marathon,meln1k/marathon,mesosphere/marathon,guenter/marathon,meln1k/marathon