From: Brian Candler <b.candler@...>
Date: 2009-07-19T04:22:33+09:00
Subject: Re: ruby in 50 milliseconds or less

Or simpler: only put "require 'rubygems'" at the top of scripts which 
use rubygems.

(Obviously less convenient than using RUBYOPT of course, but your script 
may be more portable)
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