title: What does %w(array) mean?
body: <p>I'm looking at the documentation for FileUtils.   </p>
  
  <p>I'm confused by the following line:</p>
  
  <pre><code>FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6'
  </code></pre>
  
  <p>What does the <code>%w</code> mean? Can you point me to the documentation? </p>