Comment 10 for bug 285805

The issue is that the behavior of sudo changed in Hardy when running sudo under nohup. '-k/-K' won't invalidate/remove the /var/run/sudo/<username>/unknown (aka "nohup PTY") entry unless run under nohup. Gutsy and earlier didn't seem to have a concept of a "nohup PTY", so this is confusing for users who expect -k/-K to work in both cases (ie under nohup and not under nohup).