libc/stdio: Skip fetch double argument if !CONFIG_LIBC_FLOATINGPOINT && CONFIG_LIBC_NUMBERED_ARGS

since the argument is already fetched by lib_vsprintf in this case

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

libs/libc/stdio/lib_libvsprintf.c

@@ -937,7 +937,9 @@ static int vsprintf_internal(FAR struct lib_outstream_s *stream,
 #else /* !CONFIG_LIBC_FLOATINGPOINT */
       if ((c >= 'E' && c <= 'G') || (c >= 'e' && c <= 'g'))
         {
+#  ifndef CONFIG_LIBC_NUMBERED_ARGS
           va_arg(ap, double);
+#  endif
           pnt  = "*float*";
           size = sizeof("*float*") - 1;
           goto str_lpad;