The test of filename[0] == '/' is very evil ;)

  More patches required to;

    1. use apr_filepath_merge rather than apr_pstrcat for creating proper
       and canonical paths.

    2. untangle the proxy: fooness that no longer works in directory_walk.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91622 13f79535-47bb-0310-9956-ffa450edef68