Cleanups to make shellcheck pass on root.sh
We have more work up the sleeves there, this makes this simpler and more robust.
I'm running testbuilds now, posting it here to avoid duplication e.g. due to #38 (closed).
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
We have more work up the sleeves there, this makes this simpler and more robust.
I'm running testbuilds now, posting it here to avoid duplication e.g. due to #38 (closed).