sudo autocompletion

[Andrey Butirsky <butirsky@xxxxxxxxx>]

Hi,

what is the most "canonical" way to get sudo <command> autocompleted for 
casual user?
In bash, it works out of the box. Shouldn't we provide the same?

I found many hacks about it and maybe since I'm new user they all looks 
pretty ugly.
So I decided to ask here than trying to reinvent the wheel..

Thanks.