$NetBSD: patch-ab,v 1.3 2019/10/01 14:54:59 nia Exp $

This script works in standard sh.

--- tools/arabridge.orig	2006-02-11 10:46:41.000000000 +0100
+++ tools/arabridge
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # ARAnyM - bridging network
 # STanda (c) 2004