Fix black_list file creation
Fix black_list file creation

Change-Id: I3d53356bad9f048f0fc4a9288690ab0b5bf05257

redhat-openstack/infrared,redhat-openstack/infrared,redhat-openstack/infrared,okolisny/InfraRed,okolisny/InfraRed,okolisny/InfraRed