Missing adjustments for new CLI argument parsing

[eggwhalefrog]

The new CLI parsing (mumble-voip/mumble#6063) seems to break this docker container:

murmur[2366158]: Command run to start the service : /usr/bin/mumble-server -fg -ini /data/mumble_server_config.ini
murmur[2366158]: Starting...
murmur[2366158]: --ini: File does not exist: ni
murmur[2366158]: Run with --help for more information.