Ran dist-upgrade today and noticed that sudo update wants to rewrite my /etc/sudoers. Upon reading the diff it seems that my sudo privilege would be removed by that update.
Found related question here (unfortunately closed, so I couldn't react): https://serverfault.com/questions/800112/ec2-ubuntu-server-sudo-lock-out-bug-sudoers-update
Pasted log from my console here (jiri is my username): http://pastebin.com/wZkMFFux
Kept my current version of config file, but if I did overwrite it, I understand that I would lose sudo privileges on my production server without any chance to get it back.
What does it mean? Is this normal behaviour of sudo update? It seems quite dangerous to me...
dist-upgrade
?