Re: [PATCH 09/17] riscv: add vectorized strncpy

> +strncpy:
> +  mv a3, a0                 /* save dest for return */

This comment seems misleading, the comments seems like trying to say
we save the a0 to a3 for return,
but actually we just didn't change a0 at all, so called it save dest
for return is little bit weird.