Comment 4 for bug 506203

Fair enough if it is a lot of work. I'll try to keep them to a minimum.

And in this case, it wasn't a matter of making packages private that were once public, it was a matter of inserting new packages into the PPA that needed to be private. This will (very slowly mind you) probably become more common, but I'll just make all vendor PPAs private by default to avoid the issue.