If the ftp proxy could not guess the output format of the ftp server's

If the ftp proxy could not guess the output format of the ftp server's
directory listing, it makes another attempt: it tries a format similar to
the output of "ls -s1" (optional whitespace followed by size, followed by
whitespace, followed by filename, where filename may contain no more whitespace).
This format works at least with one FTP server for which previously only
the (non-clickable) output was displayed.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93081 13f79535-47bb-0310-9956-ffa450edef68