Fix for PR 10216 ... we should not return the status unless we want the
  core to ap_die for us.  If we've handled the response (as determined
  by a new response_sent flag) then the server does not need to do so.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@97389 13f79535-47bb-0310-9956-ffa450edef68