(main): avoid warning by sending empty string as formatstring instead

of NULL (even though pop_msg handles that too)


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13239 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/popper/popper.c

@@ -99,7 +99,7 @@ main (int argc, char **argv)
             /*  Otherwise assume NOOP and send an OK message to the client */
             else {
                 p.CurrentState = s->success_state;
-                pop_msg(&p,POP_SUCCESS,NULL);
+                pop_msg(&p,POP_SUCCESS,"");
             }
         }       
     }