Comment 9 for bug 690873

I'm looking at this currently.

The default sudoers from the package does not contain the %admin line and has the following md5sum:
   360f70ce177a300375555cf5b4f61b84 /etc/sudoers
Because our default sudoers now has %admin in it we trigger the conffile prompt on upgrade. This is
the first case that needs to be handled (e.g. for chroots and similar systems).

When ubuntu-vm-builder is used, it create a sudoers file like this:
   b66718709de786a59279ad12d1940774 /etc/sudoers
This is the one we need for e.g. VM upgrades.

The template for the sudoers file in vmbuilder looks like this but can be ignored as "cheetah" renders it in a way that makes
it result in the above md5sum on the clients (just for ref the template 8e8cc1f27fc80ac6fc33ccfab60c0c4d /etc/sudoers).

When a (slightly dated) natty install with the current sudo (with the %admin line in sudoers) the admin line is added again, resulting in:
   d078f15745d795ae04b7301ca584715d /etc/sudoers

A regular maverick install has:
   2c6b4653d46ac9416faa08b1b8f24fe5 /etc/sudoers

The live-cd sudoers are slightly different (because they have NOPASSWD in).

This is a bit of a mess.