title: How can I satisfy the warning about no rubyforge_project specified?
body: <p>When I build a gem, I get</p>
  
  <pre><code>(in /home/agrimm/ruby/chaser)
  WARNING:  no rubyforge_project specified
    Successfully built RubyGem
    Name: chaser
    Version: 0.0.2
    File: chaser-0.0.2.gem
  </code></pre>
  
  <p><a href="http://docs.rubygems.org/read/chapter/20#rubyforge_project" rel="nofollow noreferrer">The friendly manual</a> says "Obviously, if your gem doesn’t have a Rubyforge project, leave this setting alone." (I don't have a Rubyforge project)</p>
  
  <p>Trying to set <code>rubyforge_project</code> to <code>nil</code> still produced the warning, and setting it to <code>false</code> caused the build to fail.</p>
  
  <p>Is there anything I can currently do about the warning, or should I just <a href="http://twitter.com/brynary/status/5469025292" rel="nofollow noreferrer">wait</a>?</p>