Bug#457391: autoremoving *after* upgrade

[Andreas Beckmann]

Hi Loïc,

 pbuilder (0.177) unstable; urgency=low
 .
   [ Loic Minier ]
   * Run apt-get autoremove after upgrade.

It's nice to see autoremove being implemented, but unfortunately it's
called before upgrade and so it will only take effect when updating
twice (that is after updating next time) because some packages may have
become obsolete by the current upgrade and not before.

Another feature I'd like to have implemented is:
check the version of apt first and skip the autoremove part if it's not
supported. This avoids some warnings/errors for e.g. etch builders.


Andreas