Created attachment 438506 [details, diff] app-text/texlive: Migrate from LINGUAS to L10N. As discussed in -dev. This for the most part looks like a straight forward renaming. Two special cases, en_GB becomes en-GB and sa_IN becomes sa. Please approve attached patch.
didnt review the whole diff, but assuming you did 's/linguas_/l10n_/' + manually fixing what changed it should be fine, thx!
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=52b76c0e9f4c6db05da4f54b44b297e926fe1b2e