Log Message:
update to bozohttpd 20181215.  changes include:

  o  fix .htpasswd bypass for authenticated users.  reported by JP,
     from leot@netbsd.org
  o  avoid possible null dereference when receiving a big request that
     timeout.  reported by maya@netbsd.org, from leot@netbsd.org
  o  fix handling of -T option, from leot@netbsd.org
  o  cleanups and portability improvements, from maya@netbsd.org
  o  change directory indexing to use html tables, from
     rajeev_v_pillai@yahoo.com