Change dhclient log level on RobertCNelson 4.1.10 kernel?

dhclient is filling the daemon.log file with needless junk. I’d like to have only actual problems logged.

I’d like to change the dhclient log level, but I can’t figure out where dhclient is invoked or where options could be specified.

Sample logfile entries:

Feb 25 06:57:28 vesta dhclient: DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 10
Feb 25 06:57:38 vesta dhclient: DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 10
Feb 25 06:57:48 vesta dhclient: DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 15
Feb 25 06:57:54 vesta dhclient: DHCPREQUEST on eth0 to 192.168.1.10 port 67
Feb 25 06:57:54 vesta dhclient: DHCPACK from 192.168.1.10
Feb 25 06:57:54 vesta dhclient: bound to 192.168.1.179 – renewal in 299 seconds.
Feb 25 06:58:03 vesta dhclient: DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 12

Don’t know if this is BeagleBone-specific or just a systemd question, but help would be really appreciated.