Updated link to the file as https://opensource.apple.com/source/adv_cmds/adv_cmds-118/us... doesn't work anymore: https://github.com/apple-oss-distributions/adv_cmds/blob/adv...

(2020)

So the ISO way is the right way, right?

Sorting is language specific even if you're restricted to languages using Latin characters. Eg. How do you sort N relative to Ñ? How do you treat the Turkish variations on the letter I?

Doing a dumb sort by character or byte values is obviously the wrong call for any diacritics, but the right call may also depend on the language.