leapsecond file

[Randy Bush]

i get these on all fbsd 10.3 hosts

Aug  7 04:13:06 cache0 ntpd[576]: leapsecond file ('/var/db/ntpd.leap-seconds.list'): expired less than 68 days ago

i have

# grep ntp /etc/periodic.conf.local 
# 480.leapfile-ntpd
daily_ntpd_leapfile_enable="YES"
daily_ntpd_avoid_congestion="NO"

consulting the net of a thousand lies did not bring enlightenment.
maybe someone here has a clue bat?  thanks.

randy