Adjust a comment

        let low = self.low_bound_ms;

        let high = std::cmp::max(

            // We don't need a saturating_add here, since low is always

            // less than high, so low cannot be equal to u32::MAX.

            // <= MAX_LOW_BOUND, so low cannot be equal to u32::MAX.

            low + 1,

            self.last_delay_ms.saturating_mul(MAX_DELAY_MULT),

        );