Bug#891810: hplip not installable without systemd

[Juliusz Chroboczek <jch@irif.fr>]

>> I most respectfully disagree -- I should be able to install the hpps
>> binary without installing systemd.

> There are non-Debian distributions which allow you to do that;

Are you seriously suggesting that whoever disagrees with you should switch
to a different distribution?

Look, Didier, this is clearly a spurious dependency.  There is no reason
why I should need to install systemd just so I get install a binary.

This can be achieved in many ways, including splitting the package, or
replacing a Depends with a Recommends somewhere.  Please be so kind as to
think about it rather than try to kick me out.

-- Juliusz