allow stuff like 'end end end' as an unaccounted line

[rbergmair]

As a matter of subjective preference, I like to write lines like

end end end

where others might write

    end
  end
end

but this doesn't seem to jive with this rule.

Can we change it to allow multiple ends?

P.S. Thank you so much for your work on this! It's really valuable to me.