Bug#766977: elasticsearch not starting

[Hilko Bengen]

* Philipp Hug:

> I suspect you did also run into the following problem, which is related:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=768178

Uh-oh, this is bad. I strongly suspect that elasticsearch is not the
only package that has this issue.

systemd's behavior is interesting, I suspect that there's room for
improvement for the init script. I'll definitely need to look more
closely into this.

Cheers,
-Hilko