Fixup resize_server docstring to match reality
Fixup resize_server docstring to match reality

Change-Id: Id581d2b3f88fd881c1e451e204eb639800ea92c5

redhat-openstack/rally,group-policy/rally,eayunstack/rally,afaheem88/rally,eonpatapon/rally,paboldin/rally,vganapath/rally,gluke77/rally,eayunstack/rally,aforalee/RRally,yeming233/rally,shdowofdeath/rally,go-bears/rally,group-policy/rally,afaheem88/rally,group-policy/rally,amit0701/rally,yeming233/rally,shdowofdeath/rally,pyKun/rally,aplanas/rally,vefimova/rally,openstack/rally,vganapath/rally,gluke77/rally,aplanas/rally,cernops/rally,paboldin/rally,vponomaryov/rally,openstack/rally,vponomaryov/rally,pyKun/rally,vganapath/rally,amit0701/rally,gluke77/rally,gluke77/rally,vganapath/rally,cernops/rally,eonpatapon/rally,amit0701/rally,paboldin/rally,go-bears/rally,openstack/rally,openstack/rally,vefimova/rally,aforalee/RRally,eayunstack/rally,redhat-openstack/rally