Hiding wp-config.php via .htaccess on an install installed in another directory?

Only the first version works…

<Files wp-config.php>
  Order Allow,Deny
  Deny from all
</Files>

As per the current documentation, in <Files filename>, the filename should include a filename, or a wild-card string, where ? matches any single character, and * matches any sequences of characters.

So, specifying path doesn’t work.