Cwd 2.18  Thu Jun 24 08:22:57 CDT 2004

 - Fixed a problem in which abs_path($arg) on some platforms could
   only be called on directories, and died when called on files.  This
   was a problem in the pure-perl implementation _perl_abs_path().

 - Fixed fast_abs_path($arg) in the same way as abs_path($arg) above.