robfram fa831f0224 Fix non-valid characters for input_action
Add a new function to check action names, `_validate_action_name`, in
the spirit of `_valprop`. Offending characters include non-printable
ascii, and `\/=:"`. Also set only one text for the UI message.

(cherry picked from commit da6c07698f591b3eac773770dc776bf095c3d9ef)
2018-04-28 17:07:20 +02:00
..
2018-01-18 09:08:01 +09:00
2018-01-18 09:08:01 +09:00
2018-02-22 12:02:02 +01:00
2018-02-19 20:48:36 +01:00