* lisp/textmodes/ispell.el (ispell-add-per-file-word-list): Deal
with `comment-end' in a way that works for comments that don’t
nest.
We proceed as follows: when `comment-end' is non-empty, we only
ever insert one start and one end comment, the first time we add
a local word. This works with both C-style (which don’t nest)
and Rust-style comments (which do).
If we’re using line comments (i.e. comments that only have a
`comment-start'), then continue to insert one on each line.
* test/lisp/textmodes/ispell-tests/ispell-tests.el
(ispell/ispell-add-per-file-word-list/nxml): Adjust test.
Bug#79871
e1f851e840