`reserved_args`? It's important because of the next block of code: 

``` ruby
begin
  opts.parse!(args - reserved_args)
rescue OptionParser::InvalidOption => e
  puts "Error when parsing arguments. Exiting!"
  exit 1
end
```

And the coupling with Daemons. 

`reserved_args` are arguments that Daemons cares about, but will cause `OptionParser` to raise exceptions.