0.004   2019-05-28 (PERLANCAR)

	- [ux] Shut up log when 'systemctl status' exits with code=3.

	- Fix envelope response.


0.003   2019-05-22 (PERLANCAR)

	- Tweak CLI output for sleep_is_prevented().


0.002   2019-05-22 (PERLANCAR)

	- Add function: sleep_is_prevented().


0.001   2019-05-22 (PERLANCAR)

        - First release.
