I'm not familiar with `GetOptLong`, I guess most Ruby people would use and understand [`optparse`](http://www.ruby-doc.org/stdlib-2.1.1/libdoc/optparse/rdoc/OptionParser.html). Could it be used instead? (Added bonus, it would be more similar to Python's [optparse](https://docs.python.org/2/library/optparse.html) I guess...)