Make sure that the secure listen sockets that are created and injected into...

Make sure that the secure listen sockets that are created and injected into the ap_listeners lists by mod_nw_ssl are handled correctly so that they remain open and reused across restarts.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@156556 13f79535-47bb-0310-9956-ffa450edef68