#710 Force overwrite of mod_posix variables on program start
Description of feature:
Make it possible to run prosody like:
/usr/bin/prosody --run_as_root=true --daemonize=false --pidfile=/var/run/prosody.pid
If I provide a mod_posix-variable like this, the one in the config-file is ignored and instead the given value is used.
This is a rather standard behavior for processes and would ease the usage with e.g. supervisord or docker. Also packaging would be easier as the packager can configure the process-behavior in the init-scripts.