of the typeset output, tend to make diffs harder to read and provide bad examples for new-comers to mdoc.
that we supported an IPv6 firewall since version 2.0. It now correctly says `4.0'.
Yes it is almost code freeze, but as the result of many thought, now I think this should be added before 4.0... make world check, kernel build check is done. Reviewed by: green Obtained from: KAME project