# File lib/chef/formatters/doc.rb, line 188
      def resource_update_applied(resource, action, update)
        prefix = Chef::Config[:why_run] ? "Would " : ""
        Array(update).each do |line|
          next if line.nil? 
          output_record line
          if line.kind_of? String
            @output.color "\n    - #{prefix}#{line}", :green
          elsif line.kind_of? Array 
            # Expanded output - delta 
            # @todo should we have a resource_update_delta callback? 
            line.each do |detail|
              @output.color "\n        #{detail}", :white
            end
          end
        end
      end