do not encode partial code units to utf16
do not encode partial code units to utf16

loon3/buffer,btd/buffer,feross/buffer,jessetane/buffer,btd/buffer,feross/buffer,beni55/buffer,beni55/buffer,SAGV/buffer,LiuDeng/buffer,SAGV/buffer,LiuDeng/buffer,nolanlawson/buffer,LinusU/buffer,kawanet/buffer,feross/buffer,LinusU/buffer,loon3/buffer,kawanet/buffer,nolanlawson/buffer