Re-reading upstream stuff, I see that their proposal for C.UTF-8 differs from ours, and includes having it as the default for setlocale(…, "") -- ie, just what I implemented in this patch.
https://sourceware.org/glibc/wiki/Proposals/C.UTF-8 -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢰⠒⠀⣿⡁ Vat kind uf sufficiently advanced technology iz dis!? ⢿⡄⠘⠷⠚⠋⠀ -- Genghis Ht'rok'din ⠈⠳⣄⠀⠀⠀⠀
