Remind user about log_level.
Remind user about log_level.

Change-Id: I70284f64769429c2605bde1acd7e741476580316

redhat-cip/tempest,tonyli71/tempest,Tesora/tesora-tempest,jamielennox/tempest,Vaidyanath/tempest,BeenzSyed/tempest,bigswitch/tempest,cloudbase/lis-tempest,CiscoSystems/tempest,jamielennox/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,yamt/tempest,sebrandon1/tempest,BeenzSyed/tempest,rakeshmi/tempest,nunogt/tempest,jaspreetw/tempest,bigswitch/tempest,Juraci/tempest,pczerkas/tempest,citrix-openstack/build-tempest,flyingfish007/tempest,LIS/lis-tempest,dkalashnik/tempest,vedujoshi/tempest,cloudbase/lis-tempest,vedujoshi/os_tempest,vedujoshi/os_tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,queria/my-tempest,Lilywei123/tempest,varunarya10/tempest,LIS/lis-tempest,JioCloud/tempest,akash1808/tempest,citrix-openstack-build/tempest,neerja28/Tempest,xbezdick/tempest,alinbalutoiu/tempest,yamt/tempest,JioCloud/tempest,pandeyop/tempest,afaheem88/tempest,eggmaster/tempest,cisco-openstack/tempest,openstack/tempest,jaspreetw/tempest,izadorozhna/tempest,armando-migliaccio/tempest,rzarzynski/tempest,adkerr/tempest,Mirantis/tempest,pczerkas/tempest,CiscoSystems/tempest,manasi24/jiocloud-tempest-qatempest,varunarya10/tempest,vmahuli/tempest,Vaidyanath/tempest,roopali8/tempest,Tesora/tesora-tempest,ebagdasa/tempest,NexusIS/tempest,itskewpie/tempest,citrix-openstack/build-tempest,citrix-openstack-build/tempest,tudorvio/tempest,ntymtsiv/tempest,dkalashnik/tempest,flyingfish007/tempest,izadorozhna/tempest,manasi24/tempest,Juraci/tempest,queria/my-tempest,armando-migliaccio/tempest,tonyli71/tempest,masayukig/tempest,masayukig/tempest,hayderimran7/tempest,hayderimran7/tempest,afaheem88/tempest_neutron,redhat-cip/tempest,danielmellado/tempest,zsoltdudas/lis-tempest,rzarzynski/tempest,hpcloud-mon/tempest,akash1808/tempest,vmahuli/tempest,nunogt/tempest,Mirantis/tempest,Juniper/tempest,Lilywei123/tempest,pandeyop/tempest,roopali8/tempest,danielmellado/tempest,alinbalutoiu/tempest,itskewpie/tempest,manasi24/tempest,rakeshmi/tempest,openstack/tempest,xbezdick/tempest,tudorvio/tempest,hpcloud-mon/tempest,zsoltdudas/lis-tempest,manasi24/jiocloud-tempest-qatempest,ntymtsiv/tempest,eggmaster/tempest,cisco-openstack/tempest,neerja28/Tempest,NexusIS/tempest,sebrandon1/tempest,afaheem88/tempest,afaheem88/tempest_neutron,adkerr/tempest,ebagdasa/tempest,Juniper/tempest,vedujoshi/tempest