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

[Mattias Engdegård]

>> Out of curiosity, I checked other tutorials, and indeed the problem exists:
>> the Swedish tutorial etc/tutorials/TUTORIAL.sv is visited in Verilog mode. 
> 
> File-local variables should be able to fix that, don't they?

What about renaming them all to TUTORIALS-xx instead? Would that inconvenience 
anyone?

I'm frequently scanning all .el files in the Emacs tree with various tools, and 
having ones that don't contain Elisp code would make the file selection pattern 
awkward and ad-hoc.