More unhelpful update descriptions

[Richard W.M. Jones]

Since this topic comes up every few months, and no one's pointed
out the obvious answer yet, I'll say it:

* Instead of making up more rules, make the tooling better so
we don't have to repeat update descriptions in multiple places. *

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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