Use the varialbe to export right keystone api version
Use the varialbe to export right keystone api version

Change-Id: I1e8ea2b7173c549065ed1f08814eb4b4bb2f05cd
Fixes: Bug #1217783

thomasem/devstack,j4/devstack,NaokiMiyata/devstack,samgoon/devstack,Mahito/devstack,samgoon/devstack,pczerkas/devstack,nawawi/openstack,sequenceiq/devstack,varunarya10/devstack,eshnil2000/devstack,pacinete/devstack,j4/devstack,neerja28/Devstack_GlusterFS,innodee/openstackk,dtroyer/devstack,eharney/devstack,sc68cal/devstack,bigswitch/devstack,rushiagr/devstack,avvocatodemarchis/devstack,promptworks/devstack,parul24/devstack,bq-xiao/devstack,neerja28/Devstack_GlusterFS,yamt/devstack,sc68cal/devstack,tianweizhang/devstack,nawawi/openstack,nuxeh/devstack,richliu/devstack,mssumanth/devstack,bljgaurav/openstack-test,dtroyer/devstack,olivierlemasle/devstack,prithivm/branch01,pczerkas/devstack,varunarya10/devstack,liuquansheng47/devstack,openstack-dev/devstack,pombredanne/devstack,kplus/devstack-moonshot,vsham20/devstack,mc2014/devstack,dirkmueller/devstack,flavio-fernandes/devstack,affo/devstack,richliu/devstack,mc2014/devstack,kplus/devstack-moonshot,costingalan/devstack,parul24/devstack,ozamiatin/devstack,vishnugonela/devstack,herrsechs/devstack,bswartz/devstack,wenhuizhang/devstack,Mahito/devstack,pacinete/devstack,CloudServer/devstack,srics/devstack,LoHChina/devstack,costingalan/devstack,avvocatodemarchis/devstack,upadhyay-prashant/devstack,pombredanne/devstack,nuxeh/devstack,noironetworks/devstack,wenhuizhang/devstack,group-policy/devstack,Juniper/devstack,rushiagr/devstack,liuquansheng47/devstack,mssumanth/devstack,NaokiMiyata/devstack,sequenceiq/devstack,openstack-dev/devstack,Yuriy-Leonov/devstack,tianweizhang/devstack,noironetworks/devstack,virtualopensystems/devstack,thomasem/devstack,TwinkleChawla/devstack,upadhyay-prashant/devstack,vsham20/devstack,BSJAIN92/OpenStack,herrsechs/devstack,promptworks/devstack,HPCHub/devstack,mmasaki/devstack,affo/devstack,andrewrothstein/devstack,ozamiatin/devstack,bigswitch/devstack,group-policy/devstack,mmasaki/devstack,HPCHub/devstack,dirkmueller/devstack,williamthegrey/devstack,eharney/devstack,atulpatil301/devstack,andrewrothstein/devstack,bswartz/devstack,flavio-fernandes/devstack,bljgaurav/openstack-test,CloudServer/devstack,jamielennox/devstack,BSJAIN92/OpenStack,prithivm/branch01,olivierlemasle/devstack,vishnugonela/devstack,LoHChina/devstack,atulpatil301/devstack,Millnert/contrail-devstack,TwinkleChawla/devstack,JioCloud/devstack,bq-xiao/devstack