HEADSUP: ZFS users

[John Birrell]

I still have more DTrace related commits to go (and need to sleep).

Since there is some overlap between the compatibility headers for ZFS and
DTrace, I suggest that ZFS users wait another 24 hours or so before updating
their current systems as a precaution against getting a broken ZFS. This
will allow me time to get all the commits done and test that ZFS still 
does the right thing.

Just a precaution against data loss.

--
John Birrell