apt does not update directory permissions

[Christoph Mathys]

> any attempted cure for this would be much worse than the disease.  If
> you want to fix a historical mistake in directory permissions, then yes,
> you need to do so in a maintainer script, and take responsibility for
> any coordination between packages that may need to happen in order to do
> so safely.

Thank you for stating this cristal clear!

Christoph