Refactors boolean returns
Refactors boolean returns

Return the boolean evaluation itself rather than
a boolean after evaluation

Change-Id: I6329d474c921e29eb3a690270de12d51cb863710

magic0704/oslo.messaging,dukhlov/oslo.messaging,zhurongze/oslo.messaging,dims/oslo.messaging,dims/oslo.messaging,ozamiatin/oslo.messaging,isyippee/oslo.messaging,apporc/oslo.messaging,stevei101/oslo.messaging,hkumarmk/oslo.messaging,stevei101/oslo.messaging,zhurongze/oslo.messaging,apporc/oslo.messaging,viggates/oslo.messaging,redhat-openstack/oslo.messaging,magic0704/oslo.messaging,JioCloud/oslo.messaging,eayunstack/oslo.messaging,ozamiatin/oslo.messaging,hkumarmk/oslo.messaging,isyippee/oslo.messaging,dukhlov/oslo.messaging,redhat-openstack/oslo.messaging