Unbound log rotation

pi@ph5:~ $ sudo nano /etc/unbound/unbound.conf.d/pi-hole.conf
remote-control:
    control-enable: yes

server:
    # If no logfile is specified, syslog is used
#    logfile: "/var/log/unbound/unbound.log"
#    logfile: "/var/log/unbound/unbound.log"
    verbosity: 0
[..]

pi@ph5:~ $ sudo service unbound restart
pi@ph5:~ $

pi@ph5:~ $ sudo netstat -nltup | grep 'Proto\|:8953 '
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:8953          0.0.0.0:*               LISTEN      7858/unbound

pi@ph5:~ $ sudo /usr/sbin/unbound-control log_reopen
ok