multi: improve readability of goroutine defers

This commit fixes the readability of some of the defer calls in
goroutines by making sure the defer stands out properly.

discovery/gossiper.go

@@ -1325,6 +1325,7 @@ func (d *AuthenticatedGossiper) networkHandler() {
 			d.wg.Add(1)
 			go func() {
 				defer d.wg.Done()
+
 				log.Infof("Broadcasting %v new announcements in %d sub batches",
 					len(announcementBatch), len(splitAnnouncementBatch))
 
@@ -2947,6 +2948,7 @@ func (d *AuthenticatedGossiper) handleAnnSig(nMsg *networkMsg,
 			d.wg.Add(1)
 			go func() {
 				defer d.wg.Done()
+
 				log.Debugf("Received half proof for channel "+
 					"%v with existing full proof. Sending"+
 					" full proof to peer=%x",

funding/manager.go

@@ -1969,6 +1969,7 @@ func (f *Manager) handleFundingAccept(peer lnpeer.Peer,
 		f.wg.Add(1)
 		go func() {
 			defer f.wg.Done()
+
 			f.waitForPsbt(psbtIntent, resCtx, pendingChanID)
 		}()
 

htlcswitch/switch.go

@@ -1742,6 +1742,7 @@ func (s *Switch) htlcForwarder() {
 			wg.Add(1)
 			go func(l ChannelLink) {
 				defer wg.Done()
+
 				l.Stop()
 			}(link)
 		}

lntest/itest/utils.go

@@ -405,6 +405,7 @@ func subscribeChannelNotifications(ctxb context.Context, t *harnessTest,
 	chanUpdates := make(chan *lnrpc.ChannelEventUpdate, 20)
 	go func() {
 		defer cancelFunc()
+
 		for {
 			select {
 			case <-quit:

rpcperms/middleware_handler.go

@@ -180,8 +180,9 @@ func (h *MiddlewareHandler) Run() error {
 	// request to the client).
 	h.wg.Add(1)
 	go func() {
+		defer h.wg.Done()
+
 		h.receiveResponses(errChan, responses)
-		h.wg.Done()
 	}()
 
 	return h.sendInterceptRequests(errChan, responses)

sweep/sweeper.go

@@ -1415,6 +1415,7 @@ func (s *UtxoSweeper) waitForSpend(outpoint wire.OutPoint,
 	s.wg.Add(1)
 	go func() {
 		defer s.wg.Done()
+
 		select {
 		case spend, ok := <-spendEvent.Spend:
 			if !ok {

ticker/force.go

@@ -39,6 +39,7 @@ func NewForce(interval time.Duration) *Force {
 	m.wg.Add(1)
 	go func() {
 		defer m.wg.Done()
+
 		for {
 			select {
 			case t := <-m.ticker:

watchtower/wtclient/session_queue.go

@@ -689,6 +689,7 @@ func (s *sessionQueueSet) ApplyAndWait(getApply func(*sessionQueue) func()) {
 		wg.Add(1)
 		go func(sq *sessionQueue) {
 			defer wg.Done()
+
 			getApply(sq)()
 		}(sessionq)
 	}