Apenas a primeira linha? ou a $ORIGIN luisr.com.br. também?
Confira o resultado, removendo a primeira linha:
root@servidor:~# sudo service bind9 restart
* Stopping domain name service... bind9 [ OK ]
* Starting domain name service... bind9 [ OK ]
root@servidor:~# grep -i named /var/log/syslog | tail -50
Feb 17 07:33:39 servidor named[22590]: zone luisr.com.br/IN: has no NS records
Feb 17 07:33:39 servidor named[22590]: zone luisr.com.br/IN: not loaded due to errors.
Feb 17 07:33:39 servidor named[22590]: zone localhost/IN: loaded serial 2
Feb 17 07:33:39 servidor named[22590]: running
Feb 17 08:55:08 servidor named[22590]: received control channel command 'stop -p'
Feb 17 08:55:08 servidor named[22590]: shutting down: flushing changes
Feb 17 08:55:08 servidor named[22590]: stopping command channel on 127.0.0.1#953
Feb 17 08:55:08 servidor named[22590]: stopping command channel on ::1#953
Feb 17 08:55:08 servidor named[22590]: no longer listening on ::#53
Feb 17 08:55:08 servidor named[22590]: no longer listening on 127.0.0.1#53
Feb 17 08:55:08 servidor named[22590]: no longer listening on 66.7.220.131#53
Feb 17 08:55:08 servidor named[22590]: no longer listening on 66.7.220.132#53
Feb 17 08:55:08 servidor named[22590]: no longer listening on 66.7.220.133#53
Feb 17 08:55:08 servidor named[22590]: no longer listening on 66.7.220.134#53
Feb 17 08:55:08 servidor named[22590]: exiting
Feb 17 08:55:10 servidor named[26476]: starting BIND 9.7.0-P1 -u bind
Feb 17 08:55:10 servidor named[26476]: built with '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc/bind' '--localstatedir=/var' '--enable-threads' '--enable-largefile' '--with-libtool' '--enable-shared' '--enable-static' '--with-openssl=/usr' '--with-gssapi=/usr' '--with-gnu-ld' '--with-dlz-postgres=no' '--with-dlz-mysql=no' '--with-dlz-bdb=yes' '--with-dlz-filesystem=yes' '--with-dlz-ldap=yes' '--with-dlz-stub=yes' '--with-geoip=/usr' '--enable-ipv6' 'CFLAGS=-fno-strict-aliasing -DDIG_SIGCHASE -O2' 'LDFLAGS=-Wl,-Bsymbolic-functions' 'CPPFLAGS='
Feb 17 08:55:10 servidor named[26476]: adjusted limit on open files from 1024 to 1048576
Feb 17 08:55:10 servidor named[26476]: found 1 CPU, using 1 worker thread
Feb 17 08:55:10 servidor named[26476]: using up to 4096 sockets
Feb 17 08:55:10 servidor named[26476]: loading configuration from '/etc/bind/named.conf'
Feb 17 08:55:10 servidor named[26476]: reading built-in trusted keys from file '/etc/bind/bind.keys'
Feb 17 08:55:10 servidor named[26476]: using default UDP/IPv4 port range: [1024, 65535]
Feb 17 08:55:10 servidor named[26476]: using default UDP/IPv6 port range: [1024, 65535]
Feb 17 08:55:10 servidor named[26476]: listening on IPv6 interfaces, port 53
Feb 17 08:55:10 servidor named[26476]: listening on IPv4 interface lo, 127.0.0.1#53
Feb 17 08:55:10 servidor named[26476]: listening on IPv4 interface eth0, 66.7.220.131#53
Feb 17 08:55:10 servidor named[26476]: listening on IPv4 interface eth0:1, 66.7.220.132#53
Feb 17 08:55:10 servidor named[26476]: listening on IPv4 interface eth0:2, 66.7.220.133#53
Feb 17 08:55:10 servidor named[26476]: listening on IPv4 interface eth0:3, 66.7.220.134#53
Feb 17 08:55:10 servidor named[26476]: generating session key for dynamic DNS
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 254.169.IN-ADDR.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 2.0.192.IN-ADDR.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 255.255.255.255.IN-ADDR.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: D.F.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 8.E.F.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: 9.E.F.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: A.E.F.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: automatic empty zone: B.E.F.IP6.ARPA
Feb 17 08:55:10 servidor named[26476]: command channel listening on 127.0.0.1#953
Feb 17 08:55:10 servidor named[26476]: command channel listening on ::1#953
Feb 17 08:55:10 servidor named[26476]: zone 0.in-addr.arpa/IN: loaded serial 1
Feb 17 08:55:10 servidor named[26476]: zone 127.in-addr.arpa/IN: loaded serial 1
Feb 17 08:55:10 servidor named[26476]: zone 255.in-addr.arpa/IN: loaded serial 1
Feb 17 08:55:10 servidor named[26476]: zone luisr.com.br/IN: loaded serial 2011021700
Feb 17 08:55:10 servidor named[26476]: zone localhost/IN: loaded serial 2
Feb 17 08:55:10 servidor named[26476]: running
Feb 17 08:55:10 servidor named[26476]: zone luisr.com.br/IN: sending notifies (serial 2011021700)
E o named-checkzone parece precisar de mais algum parâmetro.