typo tradeoff -> trade-off
typo tradeoff -> trade-off

Change-Id: Iad5eb611bc727991606f8a2d4dbb08dcc8fa3ddb

psachin/swift,larsbutler/swift,IPVL/swift-kilo,openstack/swift,thiagodasilva/swift,wenhuizhang/swift,swiftstack/swift,hbhdytf/mac2,eatbyte/Swift,takeshineshiro/swift,matthewoliver/swift,revoer/keystone-8.0.0,hbhdytf/mac,smerritt/swift,Em-Pan/swift,notmyname/swift,clayg/swift,maginatics/swift,larsbutler/swift,Akanoa/swift,mjwtom/swift,tipabu/swift,williamthegrey/swift,scality/ScalitySproxydSwift,nadeemsyed/swift,zackmdavis/swift,bradleypj823/swift,matthewoliver/swift,bouncestorage/swift,Seagate/swift,smerritt/swift,redbo/swift,thiagodasilva/swift,bkolli/swift,shibaniahegde/OpenStak_swift,anishnarang/gswift,bouncestorage/swift,hurricanerix/swift,matthewoliver/swift,clayg/swift,sarvesh-ranjan/swift,hurricanerix/swift,bkolli/swift,AfonsoFGarcia/swift,sarvesh-ranjan/swift,redhat-openstack/swift,hbhdytf/mac2,dpgoetz/swift,tipabu/swift,daasbank/swift,openstack/swift,wenhuizhang/swift,gold3bear/swift,IPVL/swift-kilo,psachin/swift,openstack/swift,Em-Pan/swift,daasbank/swift,zackmdavis/swift,psachin/swift,psachin/swift,anishnarang/gswift,clayg/swift,dencaval/swift,nadeemsyed/swift,rackerlabs/swift,AfonsoFGarcia/swift,aerwin3/swift,nadeemsyed/swift,bradleypj823/swift,eatbyte/Swift,prashanthpai/swift,tipabu/swift,Akanoa/swift,maginatics/swift,iostackproject/IO-Bandwidth-Differentiation,shibaniahegde/OpenStak_swift,dpgoetz/swift,swiftstack/swift,hbhdytf/mac,notmyname/swift,Seagate/swift,scality/ScalitySproxydSwift,hbhdytf/mac2,mjwtom/swift,clayg/swift,nadeemsyed/swift,prashanthpai/swift,notmyname/swift,smerritt/swift,gold3bear/swift,openstack/swift,levythu/swift,revoer/keystone-8.0.0,mjzmjz/swift,redhat-openstack/swift,matthewoliver/swift,notmyname/swift,takeshineshiro/swift,rackerlabs/swift,hurricanerix/swift,mjzmjz/swift,aerwin3/swift,hbhdytf/mac2,levythu/swift,smerritt/swift,tipabu/swift,hurricanerix/swift,redbo/swift,dencaval/swift,swiftstack/swift,williamthegrey/swift,iostackproject/IO-Bandwidth-Differentiation