My mistake. I have closed this as notabug.

On Sat, 21 Dec 2019, 18:50 Eli Zaretskii, <eliz@gnu.org> wrote:

> > From: Nikolaos Bezirgiannis <bezirg@gmail.com>
> > Date: Sat, 21 Dec 2019 16:00:39 +0100
> >
> > I think there is a typo in the docstring of the `goto-line` function.
> > I attach a fix.
>
> Why did you think it was a typo?  What does (N - 1) does in Lisp?
>
> Thanks.
>