f Use link isntead of an issue number

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -1705,7 +1705,7 @@ impl<Signer: Sign> Channel<Signer> {
 	pub fn funding_locked(&mut self, msg: &msgs::FundingLocked) -> Result<(), ChannelError> {
 		if self.channel_state & (ChannelState::PeerDisconnected as u32) == ChannelState::PeerDisconnected as u32 {
 			self.workaround_lnd_bug_4006 = Some(msg.clone());
-			return Err(ChannelError::Ignore("Peer sent funding_locked when we needed a channel_reestablish. The peer is likely lnd, see their bug #4006.".to_owned()));
+			return Err(ChannelError::Ignore("Peer sent funding_locked when we needed a channel_reestablish. The peer is likely lnd, see https://github.com/lightningnetwork/lnd/issues/4006".to_owned()));
 		}
 
 		let non_shutdown_state = self.channel_state & (!MULTI_STATE_FLAGS);