Re: msvcrt: fix crash in _execl

[Dmitry Timoshkov]

Louis. Lenders  wrote:
> @@ -225,9 +225,12 @@ MSVCRT_intptr_t CDECL _execl(const char*
>    char * args;
>    MSVCRT_intptr_t ret;
> - va_start(ap, arg0);
> - args = msvcrt_valisttos(arg0, ap, ' ');
> - va_end(ap);
> -
>
> if(arg0)
> -
>
> {
> -
>
> va_start(ap, arg0);
> -
>
> args = msvcrt_valisttos(arg0, ap, ' ');
> -
>
> va_end(ap);
> -
>
> }
>
> ret = msvcrt_spawn(MSVCRT__P_OVERLAY, name, args, NULL);
> MSVCRT_free(args);

I wonder whether compiler was complaining that args might be used
not initialized, what is the case when arg0 is NULL.