[fix] return exit values on daemon status.

Created by: M5oul

It haven't been migrate with TS migration.

Same as https://github.com/duniter/duniter/pull/922.

Created by: coveralls

Coverage decreased (-0.1%) to 79.349% when pulling 99ae2cb7 on status_exit_return into 45601098 on dev.

mentioned in merge request !1214 (closed)