Changes:
- order groups alphabetically
- use the same comment "Ensure those groups exist" consistently in the 2
scripts, and also drop the comment regarding a "generically named"
function.
- adds "|| true" to the usermod command in kali-user-setup (only for
consistency, the script is not run with "set -e" anyway).
After those changes, the two functions "configure_usergroups()" are very
similar, and it's very easy to spot the differences between both.
This was introduced in 5989ec37de, and
probably that was not the intention.
Adding root to groups doesn't break anything, but I don't think it makes
any sense either.