diff --git a/common/signals.go b/common/signals.go
index c2e2a683..48ed747c 100644
--- a/common/signals.go
+++ b/common/signals.go
@@ -20,17 +20,17 @@ func SignalHandlerLoop(ss ...SignalReceiver) {
 	for {
 		switch <-sigs {
 		case syscall.SIGINT, syscall.SIGTERM:
-			Log.Infof("=== received SIGINT/SIGTERM ===\n*** exiting\n")
+			Log.Infof("=== received SIGINT/SIGTERM ===\n*** exiting")
 			for _, subsystem := range ss {
 				subsystem.Stop()
 			}
 			return
 		case syscall.SIGQUIT:
 			stacklen := runtime.Stack(buf, true)
-			Log.Infof("=== received SIGQUIT ===\n*** goroutine dump...\n%s\n*** end\n", buf[:stacklen])
+			Log.Infof("=== received SIGQUIT ===\n*** goroutine dump...\n%s\n*** end", buf[:stacklen])
 		case syscall.SIGUSR1:
 			for _, subsystem := range ss {
-				Log.Infof("=== received SIGUSR1 ===\n*** status...\n%s\n*** end\n", subsystem.Status())
+				Log.Infof("=== received SIGUSR1 ===\n*** status...\n%s\n*** end", subsystem.Status())
 			}
 		}
 	}
diff --git a/ipam/claim.go b/ipam/claim.go
index bf5dafcc..63212cd7 100644
--- a/ipam/claim.go
+++ b/ipam/claim.go
@@ -30,7 +30,7 @@ func (c *claim) sendResult(result error) {
 func (c *claim) Try(alloc *Allocator) bool {
 	if !alloc.ring.Contains(c.addr) {
 		// Address not within our universe; assume user knows what they are doing
-		alloc.infof("Ignored address %s claimed by %s - not in our universe\n", c.addr, c.ident)
+		alloc.infof("Ignored address %s claimed by %s - not in our universe", c.addr, c.ident)
 		c.sendResult(nil)
 		return true
 	}
@@ -42,7 +42,7 @@ func (c *claim) Try(alloc *Allocator) bool {
 	case alloc.ourName:
 		// success
 	case router.UnknownPeerName:
-		alloc.infof("Ring is empty; will try later.\n", c.addr, owner)
+		alloc.infof("Ring is empty; will try later.", c.addr, owner)
 		c.sendResult(nil) // don't make the caller wait
 		return false
 	default:
diff --git a/ipam/ring/ring.go b/ipam/ring/ring.go
index fbeeb21b..11d53126 100644
--- a/ipam/ring/ring.go
+++ b/ipam/ring/ring.go
@@ -218,7 +218,7 @@ func (r *Ring) Merge(gossip Ring) error {
 			switch {
 			case mine.Version >= theirs.Version:
 				if mine.Version == theirs.Version && !mine.Equal(theirs) {
-					common.Log.Debugf("Error merging entries at %s - %v != %v\n", mine.Token, mine, theirs)
+					common.Log.Debugf("Error merging entries at %s - %v != %v", mine.Token, mine, theirs)
 					return ErrInvalidEntry
 				}
 				addToResult(*mine)
diff --git a/prog/weavedns/main.go b/prog/weavedns/main.go
index 06aa0780..c8217656 100644
--- a/prog/weavedns/main.go
+++ b/prog/weavedns/main.go
@@ -71,7 +71,7 @@ func main() {
 	}
 
 	SetLogLevel(logLevel)
-	Log.Infof("[main] WeaveDNS version %s\n", version) // first thing in log: the version
+	Log.Infof("[main] WeaveDNS version %s", version) // first thing in log: the version
 
 	var iface *net.Interface
 	if ifaceName != "" {
diff --git a/router/connection.go b/router/connection.go
index 3f5396f7..709d02cc 100644
--- a/router/connection.go
+++ b/router/connection.go
@@ -408,7 +408,7 @@ func (conn *LocalConnection) actorLoop(actionChan <-chan ConnectionAction) (err
 
 func (conn *LocalConnection) shutdown(err error) {
 	if conn.remote == nil {
-		Log.Errorf("->[%s] connection shutting down due to error during handshake: %v\n", conn.remoteTCPAddr, err)
+		Log.Errorf("->[%s] connection shutting down due to error during handshake: %v", conn.remoteTCPAddr, err)
 	} else {
 		conn.ErrorLog("connection shutting down due to error:", err)
 	}
diff --git a/router/connection_maker.go b/router/connection_maker.go
index acb1102d..9c65ce28 100644
--- a/router/connection_maker.go
+++ b/router/connection_maker.go
@@ -299,9 +299,9 @@ func (cm *ConnectionMaker) connectToTargets(validTarget map[string]struct{}, dir
 }
 
 func (cm *ConnectionMaker) attemptConnection(address string, acceptNewPeer bool) {
-	Log.Printf("->[%s] attempting connection\n", address)
+	Log.Printf("->[%s] attempting connection", address)
 	if err := cm.ourself.CreateConnection(address, acceptNewPeer); err != nil {
-		Log.Errorf("->[%s] error during connection attempt: %v\n", address, err)
+		Log.Errorf("->[%s] error during connection attempt: %v", address, err)
 		cm.ConnectionTerminated(address, err)
 	}
 }
diff --git a/router/ethernet_decoder.go b/router/ethernet_decoder.go
index 0404f182..84a96d0d 100644
--- a/router/ethernet_decoder.go
+++ b/router/ethernet_decoder.go
@@ -61,7 +61,7 @@ func (dec *EthernetDecoder) sendICMPFragNeeded(mtu int, sendFrame func([]byte) e
 		return err
 	}
 
-	Log.Printf("Sending ICMP 3,4 (%v -> %v): PMTU= %v\n", dec.IP.DstIP, dec.IP.SrcIP, mtu)
+	Log.Printf("Sending ICMP 3,4 (%v -> %v): PMTU= %v", dec.IP.DstIP, dec.IP.SrcIP, mtu)
 	return sendFrame(buf.Bytes())
 }
 
diff --git a/router/local_peer.go b/router/local_peer.go
index 3c9ac880..183afed5 100644
--- a/router/local_peer.go
+++ b/router/local_peer.go
@@ -71,7 +71,7 @@ func (peer *LocalPeer) RelayBroadcast(srcPeer *Peer, frame []byte, dec *Ethernet
 			dec)
 		if err != nil {
 			if ftbe, ok := err.(FrameTooBigError); ok {
-				Log.Warningf("dropping too big DF broadcast frame (%v -> %v): PMTU= %v\n", dec.IP.DstIP, dec.IP.SrcIP, ftbe.EPMTU)
+				Log.Warningf("dropping too big DF broadcast frame (%v -> %v): PMTU= %v", dec.IP.DstIP, dec.IP.SrcIP, ftbe.EPMTU)
 			} else {
 				Log.Errorln(err)
 			}
diff --git a/router/router.go b/router/router.go
index f4a254fc..4a1ae62d 100644
--- a/router/router.go
+++ b/router/router.go
@@ -215,7 +215,7 @@ func (router *Router) acceptTCP(tcpConn *net.TCPConn) {
 	// on router.Port and we wait for them to send us something on UDP to
 	// start.
 	remoteAddrStr := tcpConn.RemoteAddr().String()
-	Log.Printf("->[%s] connection accepted\n", remoteAddrStr)
+	Log.Printf("->[%s] connection accepted", remoteAddrStr)
 	connRemote := NewRemoteConnection(router.Ourself.Peer, nil, remoteAddrStr, false, false)
 	StartLocalConnection(connRemote, tcpConn, nil, router, true)
 }