This bug was fixed in the package isc-dhcp - 4.3.3-5ubuntu4
--------------- isc-dhcp (4.3.3-5ubuntu4) xenial; urgency=medium
* Allow chown - PARANOIA means that dhcpd tries to chown the leases file for later use. LP: #1537789
-- LaMont Jones <email address hidden> Mon, 25 Jan 2016 12:17:39 -0700
This bug was fixed in the package isc-dhcp - 4.3.3-5ubuntu4
---------------
isc-dhcp (4.3.3-5ubuntu4) xenial; urgency=medium
* Allow chown - PARANOIA means that dhcpd tries to chown the leases file
for later use. LP: #1537789
-- LaMont Jones <email address hidden> Mon, 25 Jan 2016 12:17:39 -0700