getopts.rb - 
        $Release Version: $
        $Revision$
        $Date$
        by Yasuo OHBA(SHL Japan Inc. Technology Dept.)

– this is obsolete; use getoptlong

2000-03-21 modified by Minero Aoki <aamine@dp.u-netsurf.ne.jp>

2002-03-05 rewritten by Akinori MUSHA <knu@ruby-lang.org>