bug#40725: 27.0.91; Tutorial reports false positive key rebindings

[Juri Linkov]

> I've now tried that, and I think you saw that when visiting the
> tutorial as any other file, with "C-x C-f", right?  Because starting a
> Swedish tutorial with "C-u C-h t Swedish RET" visits the file in
> Fundamental mode.  So I don't think the problem is serious; if we want
> to cover the "C-x C-f" use case, we can always use file-local
> variables.

Indeed, this problem exists only for tutorial writers, not readers.
And for writers we could set a file-local variable -*- mode: text -*-

OTOH, to avoid false grep hits, files could be renamed after fixing vc-git.el
to handle renames better.