f more descriptiv variable name

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -1037,10 +1037,10 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 	pub fn force_close_channel(&self, channel_id: &[u8; 32]) -> Result<(), APIError> {
 		let _persistence_guard = PersistenceNotifierGuard::new(&self.total_consistency_lock, &self.persistence_notifier);
 		match self.force_close_channel_with_peer(channel_id, None) {
-			Ok(pk) => {
+			Ok(counterparty_node_id) => {
 				self.channel_state.lock().unwrap().pending_msg_events.push(
 					events::MessageSendEvent::HandleError {
-						node_id: pk,
+						node_id: counterparty_node_id,
 						action: msgs::ErrorAction::SendErrorMessage {
 							msg: msgs::ErrorMessage { channel_id: *channel_id, data: "Channel force-closed".to_owned() }
 						},