Fix exception message for bulk create failure.
Fix exception message for bulk create failure.

Bug 1038256

Change-Id: I52ae9a7540f07f62174d51382a77ac0997c8f388

waltBB/neutron_read,wenhuizhang/neutron,cloudbase/neutron,shahbazn/neutron,ykaneko/quantum,rossella/neutron,virtualopensystems/neutron,cisco-openstack/neutron,CiscoSystems/quantum,yamahata/tacker,dhanunjaya/neutron,eayunstack/neutron,bigswitch/neutron,apporc/neutron,rickerc/neutron_audit,SamYaple/neutron,kaiweifan/neutron,rossella/neutron,NeCTAR-RC/neutron,noironetworks/neutron,kaiweifan/vse-lbaas-plugin-poc,klmitch/neutron,vijayendrabvs/ssl-neutron,mandeepdhami/neutron,sajuptpm/neutron-ipam,mattt416/neutron,aristanetworks/neutron,dims/neutron,mahak/neutron,gkotton/neutron,asgard-lab/neutron,bgxavier/neutron,CiscoSystems/quantum,netscaler/neutron,psiwczak/quantum,ntt-sic/neutron,leeseuljeong/leeseulstack_neutron,yuewko/neutron,ykaneko/quantum,vveerava/Openstack,zhhf/charging,yamahata/neutron,sajuptpm/neutron-ipam,vveerava/Openstack,mmnelemane/neutron,openstack/neutron,armando-migliaccio/neutron,citrix-openstack-build/neutron,cernops/neutron,sasukeh/neutron,oeeagle/quantum,CiscoSystems/vespa,virtualopensystems/neutron,CiscoSystems/vespa,aristanetworks/arista-ovs-quantum,cisco-openstack/neutron,cloudbase/neutron-virtualbox,waltBB/neutron_read,silenci/neutron,psiwczak/quantum,psiwczak/quantum,gkotton/neutron,mattt416/neutron,beagles/neutron_hacking,barnsnake351/neutron,JianyuWang/neutron,jerryz1982/neutron,liqin75/vse-vpnaas-plugin,vijayendrabvs/hap,yamt/neutron,vbannai/neutron,pnavarro/neutron,jacknjzhou/neutron,huntxu/neutron,leeseulstack/openstack,pnavarro/neutron,FreescaleSemiconductor/quantum,asgard-lab/neutron,openstack/neutron,dhanunjaya/neutron,mahak/neutron,kaiweifan/neutron,paninetworks/neutron,eayunstack/neutron,silenci/neutron,ykaneko/neutron,yuewko/neutron,yamahata/neutron,oeeagle/quantum,rossella/neutron,chitr/neutron,JioCloud/neutron,zhhf/charging,Juniper/neutron,infobloxopen/neutron,SmartInfrastructures/neutron,adelina-t/neutron,virtualopensystems/neutron,takeshineshiro/neutron,CiscoSystems/neutron,alexandrucoman/vbox-neutron-agent,wolverineav/neutron,FreescaleSemiconductor/quantum,Juniper/contrail-dev-neutron,netscaler/neutron,mahak/neutron,antonioUnina/neutron,leeseuljeong/leeseulstack_neutron,SmartInfrastructures/neutron,ykaneko/neutron,javaos74/neutron,vbannai/neutron,tpaszkowski/quantum,bgxavier/neutron,eonpatapon/neutron,vijayendrabvs/ssl-neutron,beagles/neutron_hacking,igor-toga/local-snat,javaos74/neutron,watonyweng/neutron,wenhuizhang/neutron,gopal1cloud/neutron,Juniper/contrail-dev-neutron,leeseulstack/openstack,jacknjzhou/neutron,Juniper/contrail-dev-neutron,miyakz1192/neutron,vijayendrabvs/hap,beagles/neutron_hacking,cloudbase/neutron-virtualbox,suneeth51/neutron,blueboxgroup/neutron,glove747/liberty-neutron,ykaneko/neutron,sajuptpm/neutron-ipam,mandeepdhami/neutron,suneeth51/neutron,yanheven/neutron,dims/neutron,aristanetworks/arista-ovs-quantum,CiscoSystems/vespa,igor-toga/local-snat,Metaswitch/calico-neutron,tpaszkowski/quantum,jumpojoy/neutron,neoareslinux/neutron,gopal1cloud/neutron,liqin75/vse-vpnaas-plugin,Brocade-OpenSource/OpenStack-DNRM-Neutron,Stavitsky/neutron,armando-migliaccio/neutron,takeshineshiro/neutron,ntt-sic/neutron,glove747/liberty-neutron,kaiweifan/neutron,yamahata/neutron,skyddv/neutron,cloudbase/neutron,miyakz1192/neutron,rdo-management/neutron,infobloxopen/neutron,kaiweifan/vse-lbaas-plugin-poc,SamYaple/neutron,CiscoSystems/neutron,psiwczak/quantum,ykaneko/quantum,Metaswitch/calico-neutron,antonioUnina/neutron,vijayendrabvs/ssl-neutron,yanheven/neutron,zhhf/charging,jerryz1982/neutron,rdo-management/neutron,blueboxgroup/neutron,yamahata/tacker,cernops/neutron,projectcalico/calico-neutron,aristanetworks/arista-ovs-quantum,Stavitsky/neutron,kaiweifan/vse-lbaas-plugin-poc,magic0704/neutron,eonpatapon/neutron,openstack/neutron,yamt/neutron,swdream/neutron,watonyweng/neutron,vijayendrabvs/hap,Comcast/neutron,Comcast/neutron,CiscoSystems/quantum,Brocade-OpenSource/OpenStack-DNRM-Neutron,JianyuWang/neutron,neoareslinux/neutron,armando-migliaccio/neutron,citrix-openstack-build/neutron,blueboxgroup/neutron,kaiweifan/vse-lbaas-plugin-poc,mmnelemane/neutron,alexandrucoman/vbox-neutron-agent,armando-migliaccio/neutron,Brocade-OpenSource/OpenStack-DNRM-Neutron,JioCloud/neutron,redhat-openstack/neutron,yamt/neutron,yamahata/tacker,aristanetworks/arista-ovs-quantum,sebrandon1/neutron,wolverineav/neutron,vveerava/Openstack,barnsnake351/neutron,sebrandon1/neutron,ykaneko/quantum,vivekanand1101/neutron,shahbazn/neutron,noironetworks/neutron,klmitch/neutron,NeCTAR-RC/neutron,liqin75/vse-vpnaas-plugin,rossella/neutron,sasukeh/neutron,FreescaleSemiconductor/quantum,Juniper/neutron,gkotton/neutron,rickerc/neutron_audit,rickerc/neutron_audit,netscaler/neutron,jumpojoy/neutron,ntt-sic/neutron,redhat-openstack/neutron,yamt/neutron,leeseuljeong/leeseulstack_neutron,leeseulstack/openstack,adelina-t/neutron,bigswitch/neutron,apporc/neutron,MaximNevrov/neutron,chitr/neutron,citrix-openstack-build/neutron,swdream/neutron,tpaszkowski/quantum,Juniper/neutron,aristanetworks/neutron,FreescaleSemiconductor/quantum,magic0704/neutron,paninetworks/neutron,MaximNevrov/neutron,projectcalico/calico-neutron,skyddv/neutron,CiscoSystems/neutron,tpaszkowski/quantum,Comcast/neutron,vivekanand1101/neutron,huntxu/neutron,vbannai/neutron,liqin75/vse-vpnaas-plugin