f correct anchor comment

Author: TheBlueMatt

lightning/src/chain/channelmonitor.rs

@@ -2915,8 +2915,9 @@ impl<Signer: Sign> ChannelMonitorImpl<Signer> {
 			if claim_via_htlc_tx {
 				// If the claim was via an HTLC-Timeout/HTLC-Success transaction, it must be a
 				// 1-in-1-out transaction as its pre-signed.
+				// Note that if anchors are available these both may vary.
 				debug_assert_eq!(tx.input.len(), 1);
-				debug_assert_eq!(tx.output.len(), 1); // If anchors are enabled this should be 2
+				debug_assert_eq!(tx.output.len(), 1);
 			}
 
 			let mut payment_preimage = PaymentPreimage([0; 32]);