Use Python 2.6.x compatible syntax for dict comprehension
Use Python 2.6.x compatible syntax for dict comprehension

The dict comprehension syntax used here was added in 2.7.
With minimal change it can be adjusted for Python 2.6.x

Change-Id: I920c4a4181fdf5c696ba873224a2c07f09e914e4

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