Hojun-Cho 4802b6593e wl: counting bytes needs no buffer to put them in ...

backbytes copied the runes into a Str and encoded them into a 257-byte
stack buffer only to throw the bytes away and keep the length.  runelen
answers over the same runes with neither.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-08-18 16:13:13 +09:00

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