# File lib/rspec/expectations/differ.rb, line 99
      def object_to_string(object)
        case object
        when Hash
          object.keys.sort_by { |k| k.to_s }.map do |k|
            %(#{PP.singleline_pp(k, "")} => #{PP.singleline_pp(object[k], "")})
          end.join(",\n")
        when String
          object =~ /\n/ ? object : object.inspect
        else
          PP.pp(object,"")
        end
      end