[Merge] ~jibel/livecd-rootfs:wsl-create-missing-groups into livecd-rootfs:ubuntu/master

[Łukasz Zemczak]

Review: Approve

Ok, I see the same is done in ubuntu-cpc's hooks 025-create-groups.chroot. So this seems good to me.
-- 
https://code.launchpad.net/~jibel/livecd-rootfs/+git/livecd-rootfs/+merge/418013
Your team Ubuntu Core Development Team is subscribed to branch livecd-rootfs:ubuntu/master.