Comment # 1 on bug 1162606 from Ignaz Forster

I agree that the old read-only-root-fs script shouldn't have written
subdirectories of /var into /etc/fstab.sys in the first place.

On the other hand: The partition has been (accidentally) mounted during initrd
for a very long time. In that sense the behavior just stayed the same as it
always was. In this case I don't see why mounting the partition in fstab.sys
would cause and problems: systemd should be clever enough to resolve the
dependency to /var during umount, so the initial motivation to move everything
to /etc/fstab does not apply here.

Is this causing any actual problem, or this this more of a cosmetic thing?