class RuboCop::Cop::Rails::LinkToBlank

def add_rel(send_node, offense_node, corrector)
  opening_quote = offense_node.children.last.source[0]
  closing_quote = opening_quote == ':' ? '' : opening_quote
  new_rel_exp = ", rel: #{opening_quote}noopener#{closing_quote}"
  range = if (last_argument = send_node.last_argument).hash_type?
            last_argument.pairs.last.source_range
          else
            last_argument.source_range
          end
  corrector.insert_after(range, new_rel_exp)
end