Nautilus closes instead of minimizing?

[Colin Law]

On 14 December 2016 at 19:12, rikona <rikona at sonic.net> wrote:
> Ignoring file '20auto-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/'
> as it has an invalid filename extension


What is in that file? It probably relates to a config file that was
detected as having been manually changed when an upgrade was
performed.  Could be a clue.

Colin