$NetBSD: patch-commit.d_50vcs-commit,v 1.4 2019/12/24 06:00:24 schmonz Exp $

Test more carefully for a possibly missing binary. From Nathan Arthur in
private mail.

--- commit.d/50vcs-commit.orig	2019-11-29 15:43:52.000000000 +0000
+++ commit.d/50vcs-commit
@@ -23,9 +23,11 @@ fi
 
 hostname=`hostname 2>/dev/null || cat /etc/hostname`
 hostname="${hostname%%.*}"
-dnsdomainname=`dnsdomainname 2>/dev/null || true`
-if [ -n "$dnsdomainname" ]; then
-	hostname="$hostname.$dnsdomainname"
+if command -v dnsdomainname >/dev/null; then
+	dnsdomainname=`dnsdomainname 2>/dev/null || true`
+	if [ -n "$dnsdomainname" ]; then
+		hostname="$hostname.$dnsdomainname"
+	fi
 fi
 
 ORIG_USER=$USER