fix some format
fix some format

fix some format according to pep8

Change-Id: I8ceb266d92c8997f131fa4096aaa6cfd4d585aaa

thiagodasilva/swift,revoer/keystone-8.0.0,redbo/swift,maginatics/swift,matthewoliver/swift,bradleypj823/swift,eatbyte/Swift,swiftstack/swift,AfonsoFGarcia/swift,iostackproject/IO-Bandwidth-Differentiation,hbhdytf/mac,thiagodasilva/swift,gold3bear/swift,Khushbu27/Tutorial,tsli/test,rackerlabs/swift,sarvesh-ranjan/swift,daasbank/swift,AfonsoFGarcia/swift,bradleypj823/swift,dpgoetz/swift,dpgoetz/swift,Seagate/swift,clayg/swift,Mirantis/swift-encrypt,smerritt/swift,Triv90/SwiftUml,redhat-openstack/swift,JioCloud/swift,VictorLowther/swift,dencaval/swift,openstack/swift,Em-Pan/swift,bkolli/swift,tipabu/swift,takeshineshiro/swift,scality/ScalitySproxydSwift,maginatics/swift,Akanoa/swift,prashanthpai/swift,dencaval/swift,larsbutler/swift,matthewoliver/swift,redbo/swift,clayg/swift,levythu/swift,aerwin3/swift,Seagate/swift,notmyname/swift,hbhdytf/mac2,notmyname/swift,bouncestorage/swift,scality/ScalitySproxydSwift,nadeemsyed/swift,hbhdytf/mac,gold3bear/swift,IPVL/swift-kilo,Triv90/SwiftUml,tsli/test,williamthegrey/swift,IPVL/swift-kilo,mjwtom/swift,nadeemsyed/swift,psachin/swift,Mirantis/swift-encrypt,psachin/swift,Em-Pan/swift,Khushbu27/Tutorial,openstack/swift,xiaoguoai/ec-dev-swift,zaitcev/swift-lfs,openstack/swift,hurricanerix/swift,hurricanerix/swift,notmyname/swift,revoer/keystone-8.0.0,smerritt/swift,sarvesh-ranjan/swift,bkolli/swift,rackerlabs/swift,shibaniahegde/OpenStak_swift,NeCTAR-RC/swift,anishnarang/gswift,aerwin3/swift,matthewoliver/swift,Akanoa/swift,zackmdavis/swift,orion/swift-config,mjzmjz/swift,eatbyte/Swift,williamthegrey/swift,clayg/swift,levythu/swift,citrix-openstack/build-swift,mjwtom/swift,smerritt/swift,daasbank/swift,tipabu/swift,citrix-openstack/build-swift,bouncestorage/swift,wenhuizhang/swift,citrix-openstack-build/swift,zackmdavis/swift,mjzmjz/swift,smerritt/swift,wenhuizhang/swift,hurricanerix/swift,citrix-openstack-build/swift,swiftstack/swift,VictorLowther/swift,prashanthpai/swift,tipabu/swift,redhat-openstack/swift,notmyname/swift,swiftstack/swift,clayg/swift,hbhdytf/mac2,nadeemsyed/swift,shibaniahegde/OpenStak_swift,NeCTAR-RC/swift,iostackproject/IO-Bandwidth-Differentiation,takeshineshiro/swift,JioCloud/swift,hbhdytf/mac2,hurricanerix/swift,hbhdytf/mac2,anishnarang/gswift,larsbutler/swift,psachin/swift,xiaoguoai/ec-dev-swift,orion/swift-config,matthewoliver/swift,tipabu/swift,psachin/swift,openstack/swift,nadeemsyed/swift,zaitcev/swift-lfs