with Chrome (the browser). Chrome will attempt to "CWD" to a filename and if
that filename was an alias from the ftpalias.cfg, we would return a
successful (213) response - erroneously. The code did appear to check for
this condition by calling ftpalias() with a NULL second (filename)
parameter, but that didn't actually work. The 'alias+1' check for a slash
appears to have (always?) been clearly wrong as a prefixed slash is already
skipped (in the requested path) before calling ftpalias().