Service local_unbound first-run /etc/resolv.conf file in the IPv6 address describing a conversion.
To convert the IPv6 address as the hostname, so do not properly forward.

This patch has not fully tested.

How-To-Repeat: 
----	example.sh
#!/bin/sh
gen_forward_conf() {
	echo "# Generated by $self"
	echo "forward-zone:"
 	echo "        name: ."
	for forwarder ; do
		if expr "${forwarder}" : "^[0-9:.]\{1,\}$" >/dev/null ; then
 			echo "        forward-addr: ${forwarder}"
		else
 			echo "        forward-host: ${forwarder}"
		fi
	done
}

gen_forward_conf 192.0.2.0 127.0.0.1 2001:db8::1 ::1 FE80::1 localhost HOGEHOGE

exit
----	example.sh

> sh example.sh
# Generated by
forward-zone:
        name: .
        forward-addr: 192.0.2.0
        forward-addr: 127.0.0.1
        forward-host: 2001:db8::1
        forward-addr: ::1
        forward-host: FE80::1
        forward-host: localhost
        forward-host: HOGEHOGE