tree 48e0352de56eeffb6876ae884e4be7a37ddd757a
parent 5355be613c4c269013d2dcd70dc7615cedcd5d7d
author Heinrich Schuchardt <xypron.glpk@gmx.de> 1600080656 +0200
committer Tom Rini <trini@konsulko.com> 1602688594 -0400

cmd/button: return button status

To make the button command useful in a shell script it should return the
status of the button:

* 0 (true) - pressed, on
* 1 (false) - not pressed, off

The button command takes only one argument. Correct maxargs.

Adjust the Python unit test.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>