Clearing SMART errors I don't care about?

[Kirk Strauser]

I have a 250GB drive that I use exclusively for unimportant data.  I  
run smartd to watch the status of my drives and get regular output like:

smartd[1409]: Device: /dev/ad8, 4 Offline uncorrectable sectors

I've been seeing that exact message for a couple of years now and  
don't particularly care.  I'd like to know if the drive's about to  
roll over and die, but I really don't need to know about the same 4  
offline uncorrectable errors.

Is there a way to clear that message while leaving SMART enabled on  
the drive?  I didn't see anything specifically answering it in  
smartctl(8) but wondered if I missed something.
-- 
Kirk Strauser