bind9 systemd related problems

[Yuriy M. Kaminskiy]

Tollef Fog Heen <tfheen at err.no> writes:

> ]]  (Yuriy M. Kaminskiy)
>
>> Tollef Fog Heen <tfheen at err.no> writes:
>> 
>> > ]] Nikolay Shaplov 
>> >
>> >> Cause this bug affects a lot of cases and there is no way to solve it without 
>> >> touching /lib/systemd/system/bind9.service and it is not nice way at all...
>> >
...
>> > and it'll start with -4.
>> 
>> Then package maintainer adds/change some option/path, and you'll miss that on
>> package upgrade because nothing can notice and warn you.
>
> systemd-delta is your friend.

When I change configuration file, and updated package changes it too,
dpkg will warns me on update, and suggests diff/update/etc them.
When I customize systemd unit with drop-ins, and package changes
unit file, nobody warns me.