[@dwijnand]: http://github.com/dwijnand
  [1998]: https://github.com/sbt/sbt/issues/1998
  [2000]: https://github.com/sbt/sbt/pull/2000

### Fixes with compatibility implications

### Improvements

- Add a nicer toString to SimpleCommand to make it more human-friendly. [#1998][1998]/[#2000][2000] by [@dwijnand][@dwijnand]

### Bug fixes