autoconf 2.5.2d to hopefully prevent segfaults on FreeBSD,
and changes the samples and documentation slightly.
Submitted by: Jeff Chan <rwhois@jeffchan.com> (the author)
options `start' and `stop' now (unless I have forgotten any). This allows
us to call the scripts from /etc/rc.shutdown with the correct option.
The (42 or so) ports that already DTRT before are unchanged.