bug#21816: elisp-mode-tests fails on a case-preserving filesystem

[Random832]

Eli Zaretskii <eliz@gnu.org> writes:
> Not if "canonical" does not tell anything about letter-case or the
> flavor of slashes.

It does, because to be canonical it has to be a _single_ sequence of
characters that is the preferred representation of the object over all
others. If no such sequence exists, then that means there is no
canonical form, not that there are two. That's what canonical means.