Comment 13 for bug 1872183

Since this SRU is for the purpose of fixing the upgrade path from Bionic to Focal and Focal's release is imminent, and taking into account the trivial nature of the diff and that it only applies to chrony's postrm, I think it makes sense to skip the usual ageing period, since otherwise we'll miss out on getting testing for this from all the people testing the upgrade from Bionic to Focal currently.