Fix a minor python issue related with string.split
Fix a minor python issue related with string.split

Replacing string.split(value, ',') with value.split(','):
the string.split() function was removed in Python 3

Change-Id: I9ed241a894ac698da33df75a774a56ae2824fadf

takeshineshiro/swift,hurricanerix/swift,mjwtom/swift,notmyname/swift,williamthegrey/swift,revoer/keystone-8.0.0,rackerlabs/swift,nadeemsyed/swift,tipabu/swift,thiagodasilva/swift,swiftstack/swift,larsbutler/swift,prashanthpai/swift,bouncestorage/swift,hurricanerix/swift,openstack/swift,shibaniahegde/OpenStak_swift,matthewoliver/swift,hbhdytf/mac2,openstack/swift,hbhdytf/mac,larsbutler/swift,hbhdytf/mac2,swiftstack/swift,matthewoliver/swift,bkolli/swift,redbo/swift,rackerlabs/swift,dencaval/swift,hbhdytf/mac,swiftstack/swift,thiagodasilva/swift,daasbank/swift,psachin/swift,tipabu/swift,redbo/swift,psachin/swift,williamthegrey/swift,smerritt/swift,daasbank/swift,openstack/swift,takeshineshiro/swift,nadeemsyed/swift,Akanoa/swift,psachin/swift,gold3bear/swift,clayg/swift,nadeemsyed/swift,Em-Pan/swift,notmyname/swift,shibaniahegde/OpenStak_swift,openstack/swift,prashanthpai/swift,tipabu/swift,bradleypj823/swift,clayg/swift,bouncestorage/swift,clayg/swift,Em-Pan/swift,nadeemsyed/swift,bkolli/swift,hbhdytf/mac2,mjzmjz/swift,aerwin3/swift,redhat-openstack/swift,Akanoa/swift,bradleypj823/swift,mjzmjz/swift,notmyname/swift,notmyname/swift,gold3bear/swift,hurricanerix/swift,smerritt/swift,redhat-openstack/swift,tipabu/swift,psachin/swift,matthewoliver/swift,clayg/swift,hbhdytf/mac2,revoer/keystone-8.0.0,smerritt/swift,mjwtom/swift,hurricanerix/swift,levythu/swift,levythu/swift,smerritt/swift,matthewoliver/swift,aerwin3/swift,dencaval/swift