On DD-WRT v3.0-r52189, dnsmasq version 2.89 lease format looks like:
1685794060 <mac> <ip> <hostname> 00:00:00:00:00:04 9
It has 6 fields, while the current parser only looks for line with exact
5 fields, which is too restricted. In fact, the parser shold just skip
line with less than 4 fields, because the 4th field is the hostname,
which is the last client info that ctrld needs.
bbfa7c6c22