Log Message:
update to bozohttpd 20190228.  changes include:

o  extend timeout facility to ssl and stop servers hanging forever
   if the client never sends anything.  reported by Steffen in netbsd
   PR#50655.
o  don't display special files in the directory index.  they aren't
   served, but links to them are generated.
o  fix CGI '+' parameter handling, some error checking, and a double
   free.  from rajeev_v_pillai@yahoo.com
o  more directory indexing clean up.  from rajeev_v_pillai@yahoo.com