GetoptLong for Ruby
Copyright © 1998, 1999, 2000 Motoyuki Kasahara.
You may redistribute and/or modify this library under the same license terms as Ruby.
See GetoptLong for documentation.
Additional documents and the latest version of ‘getoptlong.rb’ can be found at www.sra.co.jp/people/m-kasahr/ruby/getoptlong/