Missing "zfs diff" entry in "man zfs"

[Glen Barber]

On Thu, Jan 05, 2012 at 05:40:20PM +0100, claudiu vasadi wrote:
> Hi guys,
> 
> I was unable to find a "zfs diff" entry in "manual pages for "zfs" while
> running 8.2 amd64, r226179, zfs V28.
> Is this a bug or was the section never written ?
> 

The zfs(1M) manual is from the upstream OpenSolaris documentation.  'zfs
diff' is missing from their documentation as well, it seems.

Glen