Need to check the size of the response header instead of the
request header in saRecvQueue.

BKrev: 412a6f3b4NlVb-n94TuM1jqiD4KUgA


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@201 fd59a12c-fef9-0310-b244-a6a79926bd2f