merge r603346 from trunk:

  http_protocol: Escape request method in 405 error reporting.
  This has no security impact since the browser cannot be tricked
  into sending arbitrary method strings.

Reviewed by: wrowe, rpluem


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@604426 13f79535-47bb-0310-9956-ffa450edef68