[MEDIUM] ensure that sock->shutw() also closes read for init states

Non-connected states will never have a chance to receive a shutr event,
so we need to propagate the shutw across the stream interface.

src/stream_sock.c

@@ -485,9 +485,10 @@ void stream_sock_shutw(struct stream_interface *si)
 		fd_delete(si->fd);
 		/* fall through */
 	case SI_ST_CER:
+		si->state = SI_ST_DIS;
+	default:
 		si->ib->flags |= BF_SHUTR;
 		si->ib->rex = TICK_ETERNITY;
-		si->state = SI_ST_DIS;
 		return;
 	}
 }