Bill Studenmund writes:
> PR 5990 supplies a simple patch - just make the root node's owner the
> (effective) user who ran the command, and set the group equal to the
> process's effective group.
> 
> That seems fine to me.

I'd say `do it'. You can't format a device you don't have write access
to anyway, so it's unlikely to bite users. As long as it's documented
in the man page (maybe in `SECURITY CONSIDERATIONS').