These failure cases are all essentially bogus submissions to httpd,
  do not persist the connection if the client can't formulate any
  respectible request (e.g. likely to be exploit testing).

  [None of the modified failure cases occur prior to request processing.]

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@191517 13f79535-47bb-0310-9956-ffa450edef68