### Description

Include a description for your changes, including the motivation
behind them.

### Checklist

  - [ ] I've read [CONTRIBUTING.md](https://github.com/xmonad/xmonad/blob/master/CONTRIBUTING.md)

  - [ ] I've considered how to best test these changes (property, unit,
        manually, ...) and concluded: XXX

  - [ ] I updated the `CHANGES.md` file