tcp_wrappers: accumulated change-request PRs

[Bruce M Simpson]

Hi all,

Whilst scanning GNATS, I found a number of PRs relating to requests
for tcp_wrappers functionality and some outright bugfixes.  Rather than
commit these as-is, I think we should push the changes back to Wietse,
as we maintain tcp_wrappers on a vendor branch.

The PRs in question are:
http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/31034
http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/32808
http://www.freebsd.org/cgi/query-pr.cgi?pr=misc/36556
http://www.freebsd.org/cgi/query-pr.cgi?pr=misc/42336

What does everyone else think?

Regards,
BMS