use postfix and variable initialisation

src/strncpy.🗿

@@ -1,11 +1,11 @@
 strncpy(dst, src, size)
 {
-	local i;
-	i = 0;
+	local i = 0;
+
 	loop {
 		if ([src + i] == 0 | i == size)
 			return (dst);
 		[dst + i] = [src + i];
-		i = i + 1;
+		i++;
 	}
 }