[tex-hyphen] language tag for Serbian (Serbo-Croatian?) patterns

[Jonathan Kew]

I notice that hyph-utf8 currently includes patterns labelled as sh-Cyrl and sh-Latn. I'm wondering whether "sh" is really the most appropriate language code here; my understanding is that this is a deprecated code for "Serbo-Croatian", not recommended for current use. Shouldn't these patterns rather be labelled as sr-Cyrl and sr-Latn?

JK