Fix screenrc for nova-compute
Fix screenrc for nova-compute

When devstack creates stack-screenrc, it includes unescaped "
characters that cause failures starting nova-compute.  This fix
changes the " to ' so there isn't a conflict.

Fixes bug 1183114

Change-Id: I7830879d56f1ac20950aace46dd3b72d209986ce

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