The CONTRIBUTING.md requests an (or multiple) SPDX identifier for GPL
licenses. But a lot of packages did use a different, non-SPDX style with a
"+" at the end instead of "-or-later".

Signed-off-by: Sven Eckelmann <sven@narfation.org>

Rearrange Makefile for consistency.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Update tio to 1.31

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

Update tio to 1.30

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

Update tio to 1.29

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

Update tio to 1.28
Remove myself as maintainer

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

tio is a simple TTY terminal I/O application

It's smaller than picocom, uses GNU autotools and has some nice features

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>