The "slack" option doesn't make effect when use newAtomicInt64Based version rate limit

[nemohan]

Use following test code:
func TestSlack2(t *testing.T) { rl := New(1, WithSlack(2)) // per second, some slack. rl.Take() // Initialize. time.Sleep(time.Second * 4) for i := 0; i < 100; i++ { rl.Take() fmt.Printf("%d\n", time.Now().Unix()) } }
I got those output:
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
1702546953
....