http://www.freebsd.org.ua/doc/ru_RU.KOI8-R/books/handbook/network-bind9.html
It looks like BIND 8 arguements being passed to BIND 9. -g no longer specifies the group (that is obtained from the passwd entry). It turns on causes names to stay in the foreground and to send the log messages to stderr.

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/usr/src/UPDATING:
20041001:
If enabled, the default is now to run named in a chroot
"sandbox." For users with existing configurations in
/etc/namedb the migration should be simple. Upgrade your
world as usual, then after installworld but before
mergemaster do the following:
If named is running: /etc/rc.d/named stop
cd /etc
mv namedb namedb.bak
mkdir -p /var/named/etc/namedb
cp -Rp namedb.bak/* /var/named/etc/namedb/
mergemaster (with your usual options)
If using the generated localhost* files:
cd /var/named/etc/namedb
/bin/sh make-localhost
rm -f localhost-v6.rev localhost.rev
/etc/rc.d/syslogd restart
/etc/rc.d/named start
If you are using a custom configuration, or if you have
customised the named_* variables in /etc/rc.conf[.local]
then you may have to adjust the instructions accordingly.

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