Set path_info in sub_slo manifest GET requests
Set path_info in sub_slo manifest GET requests

The new_req Request object created for fetching
nested sub_slo manifests does not have its
path_info set to the sub_slo path before being
passed to GETorHEAD_base.

The sub manifest GET works fine because
GETorHEAD_base uses its path argument
(not req.path) to set up its connection,
BUT if an exception is thrown,
GETorHEAD_base uses req.path to construct
the log message - so the exception log would
have the wrong path.

Fixes bug 1231872

Change-Id: I0f0f969958f814d8a7053440d9de4e50796169e4

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