Notify others about going offline

ethermess.c

@@ -895,6 +895,10 @@ int main(int argc, char **argv) {
 	// Start the event loop
 	eventloop();
 
+	// Set our status to going offline and broadcast that
+	own_status = EMS_OFFLINE;
+	send_status(broadcast_mac);
+
 	// Close the socket (tho I'm not 100% sure it's needed)
 	if (close(packet_socket) == -1) {
 		err(1, "close");