Fix leak in virLockSpaceResourceFree

Normally a lockspace resource is not freed while there are
active owners. During initial resource creation though, an
OOM error will trigger this scenario. virLockSpaceResourceFree
was not freeing the 'owners' field in this case.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

src/util/virlockspace.c

@@ -102,6 +102,7 @@ static void virLockSpaceResourceFree(virLockSpaceResourcePtr res)
         }
     }
 
+    VIR_FREE(res->owners);
     VIR_FORCE_CLOSE(res->fd);
     VIR_FREE(res->path);
     VIR_FREE(res->name);