The first of several 2.2 backports I'll offer to get protocol logic on 2.2

in sync with 2.4, allowing us to consider much more similar backport proposals
to both.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1757269 13f79535-47bb-0310-9956-ffa450edef68