We now keep the entire conn_rec across downstream keepalives, not

just the socket.
Made the "keepalive mismatch" message more accurate.
PR:
Obtained from:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88793 13f79535-47bb-0310-9956-ffa450edef68