No need to apr_pstrdup things here, 'apr_socket_accept_filter' already makes it own copy.

Not compiled nor tested as on my system APR_HAS_SO_ACCEPTFILTER is set to 0.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1401448 13f79535-47bb-0310-9956-ffa450edef68