Bug#627188: apt-listchanges et al: please document VERSION 2 hook interface

[Jonathan Nieder <jrnieder@gmail.com>]

Pierre Habouzit wrote:

> This is an interface that you can set-up using things like:
>
>     DPkg::Pre-Install-Pkgs { "/usr/bin/apt-listchanges --apt || test $? -ne 10"; };
>     DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";

Yes, I know.

> You have an explanation in apt.conf(5):

Which unfortunately does not explain the format that apt and cupt use
to generate the input, nor the format that apt-listchanges and
apt-listchanges expect to read.  Hence this bug report.

Thanks for a reminder of the existing documentation, though.  That
does look like a good place to put the list of fields.

Regards,
Jonathan