[PATCH] fortran/95509 - fix spellcheck-operator.f90 regression

[Tom Tromey]

Bernhard> Yes, this is probably OK although Fortran is case-
Bernhard> insensitive. I think we lowercase names coming in from the
Bernhard> source (at least for the internal identifier nodes), so we
Bernhard> should not be affected by any case change.

I already checked it in, but FWIW it would be pretty easy to change
get_edit_distance to have a case-insensitive mode.

Tom