title: irb does not work after rbenv install
body: <p>So I just ditched rvm in order to try rbenv. I installed with macports and followed the instructions regarding installation. However when I try to run irb I get:</p>
  
  <pre><code>/Users/user/.rbenv/versions/1.9.3-rc1/lib/ruby/1.9.1/irb/init.rb:236:in `load':
  /Users/user/.irbrc:1: syntax error, unexpected tIDENTIFIER, expecting $end (SyntaxError)
  ...require 'irb/completion'require 'irb/completion'require 'irb...
  </code></pre>
  
  <p>Any one out there run into the same problem or know what could be causing this?</p>