title: How do I pretty-print HTML with Nokogiri?
body: <p>I wrote a web crawler in Ruby and I'm using <code>Nokogiri::HTML</code> to parse the page. I need to print the page out and while messing around in IRB I noticed a <code>pretty_print</code> method. However it takes a parameter and I can't figure out what it wants.</p>
  
  <p>My crawler is caching the HTML of the webpages and writing it to files on my local machine. I would like to "pretty print" the HTML so that it looks nice and properly formatted when I do so.</p>