The out of date copyright dates are annoying to me, because i have a write hook that asks me if I want to update them any time I change a file with one.
As such, I have the policy of never doing that during any other commit (it'd introduce an unrelated diff that would make back-porting or cherry-picking harder, and increases risk of conflict), so instead perform a mass-copyright-update once per year, usually in the first few days of January. This time, I'm a few months late. I've just pushed it.
