d94e693bc4
dnsmasq will call the add, old, and del actions with an optional 4 argument of hostname if the hostname is known. Since we populate the hostname in the DHCP host file its always passed to us. Add an optional 4 argument for hostname for the add, old, and del actions. Change-Id: I1a6c095324be2424d6c1d469877b254f88fba4aa Fixes: bug #1103783