sbin/dhclient/*.c:
- add __FBSDID
sbin/dhclient/conflex.c: 1.3-1.4
- fix a minor buffer overflow in config parsing
- actually support backslash escaping in config files
bin/dhclient/dhclient-script: 1.6-1.10
- don't create or remove routes to our address through 127.0.0.1
- improved detection of the interface of the default route
- support quotes in the medium string
- clear interface state more effectively on failure
- don't update resolv.conf when unchanged
bin/dhclient/dhclient.c: 1.10-1.11
- validate domain-name (used as resolv.conf search string)
- handle superseded subnet-mask correctly
Approved by: re (scottl)