Fix a Windows seg fault on startup when multiple listen directives are being used.

The pool pointer in the local address field in apr_sock_t is not initialized until a
request is received.  in general, we should not rely on the addressed in apr_sock_t
when doing work on the listen_recs.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88482 13f79535-47bb-0310-9956-ffa450edef68