newfs by fstab directory name?

[David O'Brien]

On Mon, Oct 27, 2003 at 01:26:23PM -0800, Wes Peters wrote:
> At work we do a lot of dynamic filesystem creation, so we added the 
> ability to specify the 'special file' argument to newfs via the fstab 
> mount point directory.  Please see the attached patch.  If nobody 
> objects, I'll commit this in a couple of days.

Not objecting, but I don't follow how the change is to be used.
Can you post an example?