Jaunty reports more security updates than packages to be updated

[john]

Hi all,

I have a server running LTSP/Jaunty and when I log in from the console
I get a helpful warning about packages to be updated. However
the message appears to be incorrect, see below:

2 packages can be updated.
4 updates are security updates.

If I do aptitude upgrade I see:

The following packages will be upgraded:
  linux-libc-dev linux-restricted-modules-common

E.g. only 2 packages to update, not four.

I suppose this is a bug, but perhaps I don't understand something
here. Didn't see anything in the bug tracker against Jaunty that
seemed appropriate.

Anyone else notice this?

John