PR59815: rewrite per-directory + fcgi broken in 2.4.23

remove the query string from r->filename before calculating environment
(SCRIPT_FILENAME) in mod_proxy_fcgi.  Before PR59618, php-fpm would
see proxy:fcgi:// and do some of this same stripping.





git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1751970 13f79535-47bb-0310-9956-ffa450edef68