f rename variable for clarity

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -4854,15 +4854,15 @@ where
 			let pending_msg_events = &mut channel_state.pending_msg_events;
 			channel_state.by_id.retain(|_, channel| {
 				let res = f(channel);
-				if let Ok((chan_res, mut timed_out_pending_htlcs, announcement_sigs)) = res {
+				if let Ok((funding_locked_opt, mut timed_out_pending_htlcs, announcement_sigs)) = res {
 					for (source, payment_hash) in timed_out_pending_htlcs.drain(..) {
 						let chan_update = self.get_channel_update_for_unicast(&channel).map(|u| u.encode_with_len()).unwrap(); // Cannot add/recv HTLCs before we have a short_id so unwrap is safe
 						timed_out_htlcs.push((source, payment_hash,  HTLCFailReason::Reason {
 							failure_code: 0x1000 | 14, // expiry_too_soon, or at least it is now
 							data: chan_update,
 						}));
 					}
-					if let Some(funding_locked) = chan_res {
+					if let Some(funding_locked) = funding_locked_opt {
 						pending_msg_events.push(events::MessageSendEvent::SendFundingLocked {
 							node_id: channel.get_counterparty_node_id(),
 							msg: funding_locked,