Comment was a little bit inaccurate. Also explicitly mention 2068 S9,

S14.23 in the error message so that maybe we can avoid more and more
people complaining about us rejecting HTTP/1.1 requests without a Host:
header.

PR:		1454


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79639 13f79535-47bb-0310-9956-ffa450edef68