Comment 4 for bug 1603222

I think this is a matter of bug 1411582 actually not having been SRU'd correctly.
$ lsb_release -sc
trusty
$ dpkg-query --show cloud-init
cloud-init 0.7.5-0ubuntu1.19
$ dpkg -L cloud-init | grep udev
$ dpkg -L cloud-init | grep udev || echo no files named udev
no files named udev

I also checked that the version that was marked as SRU'd in (0.7.5-0ubuntu1.8) does not have any udev files. So it seems that it just never got in, versus having regressed since 0.7.5-0ubuntu1.8.

$ wget https://launchpad.net/ubuntu/+archive/primary/+files/cloud-init_0.7.5-0ubuntu1.8_all.deb
$ dpkg -c cloud-init_0.7.5-0ubuntu1.8_all.deb | grep udev || echo no files named udev
no files named udev