util.startup: Abort before initialization of logging when started as root
Prevents creation of log files owned by the root user which could be
inaccessible once started correctly.
For full information on our dependencies, version requirements, and
where to find them, see https://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec