[libreantdb] optimized length function
[libreantdb] optimized length function

insomnia-lab/libreant,leophys/libreant,leophys/libreant,ael-code/libreant,ael-code/libreant,leophys/libreant,leophys/libreant,insomnia-lab/libreant,insomnia-lab/libreant,ael-code/libreant,ael-code/libreant,insomnia-lab/libreant