Should we suggested a config entry for 'Assume-Yes' instead?

[eddelbuettel]

I love that wajig update; wajig upgrade is now promptless again after we injected --yes. At the same time I am a) a little worried that maybe we are overriding apt's own choice (which, when done carefully, is defensible) and b) of course into fullupgrade and safeupgrade also needing a --yes which gives a bit of pause.

As an alternative we could just install the following in an apt.conf.d/ snippet, sat /etc/apt/apt.conf.d/50AssumeYes:

APT {
  Get {
    Assume-Yes "true";
  };
};

This would allow users to just comment this out in case they wanted to prompt. Better behaviour, overall?