f fix comment

Author: TheBlueMatt

lightning/src/ln/payment_tests.rs

@@ -2906,7 +2906,7 @@ fn do_claim_from_closed_chan(fail_payment: bool) {
 	connect_blocks(&nodes[3], final_cltv - HTLC_FAIL_BACK_BUFFER - nodes[3].best_block_info().1
 		- if fail_payment { 0 } else { 2 });
 	if fail_payment {
-		// We fail the HTLC on the A->C->D path first as it expires 4 blocks earlier. We go ahead
+		// We fail the HTLC on the A->B->D path first as it expires 4 blocks earlier. We go ahead
 		// and expire both immediately, though, by connecting another 4 blocks.
 		let reason = HTLCDestination::FailedPayment { payment_hash };
 		expect_pending_htlcs_forwardable_and_htlc_handling_failed!(&nodes[3], [reason.clone()]);