Obtained from:Jozsef Hollosi <hollosi@sbcm.com>

change proxy_host2addr() to return the original IP address when
gethostbyaddr() fails due to reverse DNS lookup problems. Also make sure
we don't leak memory, slowly.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78170 13f79535-47bb-0310-9956-ffa450edef68