Comment 3 for bug 13402

Reproduced in Breezy Colony 3: "There is 1 item of post-update informations
available!". Reopening. A minimal fix would be "There is 1 item of post-update
information available.".

Instead, however, I'd suggest "For advice on recently installed updates, click
here.". Rationale:
* there's usually just one item anyway, so the number of items isn't that
important;
* it explains somewhat better what kind of information it is;
* it explains what you actually need to do to see the information.