Fix parameter list to ap_pcfg_openfile().

(No, this doesn't get mod_info to compile...  No, I'm not working
on mod_info...  I happened to notice the bad call so I fixed it.)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86260 13f79535-47bb-0310-9956-ffa450edef68