f fix comment

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -2727,7 +2727,7 @@ impl<Signer: WriteableEcdsaChannelSigner> Channel<Signer> {
 			}
 		} else {
 			// If the channel is inbound (i.e. counterparty pays the fee), we need to make sure
-			// sending a new HTLC won't reduce their balance below our dust threshold.
+			// sending a new HTLC won't reduce their balance below our reserve threshold.
 			let mut real_dust_limit_success_sat = self.counterparty_dust_limit_satoshis;
 			if !self.opt_anchors() {
 				real_dust_limit_success_sat += self.feerate_per_kw as u64 * htlc_success_tx_weight(false) / 1000;