A little loopy commit.  Refer mod_cgid users to the mod_cgi docs for
  extra info, document the AcceptPathInfo impact in the PATH_INFO comments
  of mod_cgi, and document it's configuration in core.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@92455 13f79535-47bb-0310-9956-ffa450edef68