Well, I got a 2 in nynorsk, so I expected to have some mistakes going into this. Not sure I can handle also being graded by it.

I have replaced endreleg with "open", and the immutable variable with "open" in later versions (done after the article).

So now the "endreleg" is less of an annoyance, both because it no longer exists and because it has the same number of characters as the immutable keyword.