Added tgtadm to sudo cmd list.  Fixes bug 927924.
Added tgtadm to sudo cmd list.  Fixes bug 927924.

We need this if we are ever to create or delete volumes.

Change-Id: If451b936a04d064feba2eefec499e1669e1837d6

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