Add Flink jobmanager's log file to sandbox (#979)
Add Flink jobmanager's log file to sandbox (#979)

* add jobmanager's log file to sandbox

* fix hardcoded

yuchaoran2011/universe,BuoyantIO/universe,BuoyantIO/universe,mwl/universe,aloismayr/universe,yuchaoran2011/universe,madanadit/universe,dbtucker/universe,ksivask/universe,mesosphere/universe,dbtucker/universe,madanadit/universe,mwl/universe,ksivask/universe,AppliedIS/universe,AppliedIS/universe,yuchaoran2011/universe,mesosphere/universe,AppliedIS/universe,BuoyantIO/universe,aloismayr/universe,aloismayr/universe,ksivask/universe,madanadit/universe,dbtucker/universe