Qubes component: linux-utils
rustybird Order qubes-meminfo-writer-dom0 before systemd-user-sessions
qubes-vm@.service would already cause this ordering, but not every user
has any autostart=True VMs.

Also needed to maybe f*x QubesOS/qubes-issues#3149 at some point.
Latest commit 6cd4a1b Sep 6, 2018