f tweak comment

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -3364,7 +3364,8 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 					if let Some(short_id) = channel.get_short_channel_id() {
 						short_to_id.remove(&short_id);
 					}
-					// It looks like our counterparty went on-chain. Close the channel.
+					// It looks like our counterparty went on-chain or funding transaction was
+					// reorged out of the main chain. Close the channel.
 					failed_channels.push(channel.force_shutdown(true));
 					if let Ok(update) = self.get_channel_update(&channel) {
 						pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {