document correct config in dispersion-report help
document correct config in dispersion-report help

The --help message of swift-dispersion-report used to say
/etc/swift/stats.conf instead of the correct and consistent
/etc/swift/dispersion.conf - this change updates that
commandline help message.

Change-Id: I69ad64d31bb86eb0d36fcf5b17aa8bf42f646ed1

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