Leave HTML escaped for HtmlFormatter.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rdoc/ri/ri_formatter.rb

@@ -554,9 +554,7 @@ module RI
 
     def display_verbatim_flow_item(item, prefix=@indent)
         print("<pre>")
-        item.body.split(/\n/).each do |line|
-          puts conv_html(line)
-        end
+        puts item.body
         puts("</pre>")
     end