submitted in PR 11260 by Nobuhiro Yasutomi <nobu@tech.isac.co.jp>
I've discussed with the submitter that it's explicitly OK for us to
not set NO_BINARY_ON_{FTP,CDROM}.
Changes:
Ver. 1.03o fix floppy drive extention area mis recognize.
(10/12/00) fix mistake handling archive that include directry.
enhance to get floppy drive information.
fix to fail file copy (for MS-DOS version).
Ver. 1.03n support OpenBSD.
(09/30/00) allow key interrupt when get floppy drive size.
QUIT_SYSTEM to allow in defined function.
fix character code setting.
fix can't input duplicat '/' in command line.
Ver. 1.03m fix to relative path makes normalize in PATH env.
(09/15/00) fix to fail chdir when follow symbolic link.
support symbolic link in Japanese. Linux ReiserFS support.
support change floppy when using.
fix redraw problem at tree view.
support tree view in case cyclic directory.
fix tree view at top directory.
fix can't assign internal command to key with argument.
fix Mata key assign display.
fix copy file timestamp at recursive directory (for MS-DOS).
fix mistake handling archive that include directry (for MS-DOS).
fix sence free space that copy distination (for MS-DOS).
