dhclient(8) has been undergoing replacement with "ifconfig xxx inet auto"

dhclient(8) has been undergoing replacement with "ifconfig xxx inet auto"
for a couple of years, backed by dhcpleased(8), which provides much better
dns handling.  The next step is to make the dhclient simply execve
ifconfig in that way, and provide syslog warnings about deprecated options
along the way.  This way, we can find the last few dhclient users, and what
they are missing.
ok florian krw