fix typo in writer.go's comment

Author: Bo0km4n

layers/bfd_test.go

@@ -89,11 +89,11 @@ func TestBFDNoAuth(t *testing.T) {
 			},
 			Payload: nil,
 		},
-		Version:    1,
-		Diagnostic: BFDDiagnosticNone,
-		State:      BFDStateDown,
-		Poll:       false,
-		Final:      false,
+		Version:                   1,
+		Diagnostic:                BFDDiagnosticNone,
+		State:                     BFDStateDown,
+		Poll:                      false,
+		Final:                     false,
 		ControlPlaneIndependent:   false,
 		AuthPresent:               false,
 		Demand:                    false,
@@ -139,11 +139,11 @@ func TestBFDAuthTypePassword(t *testing.T) {
 			},
 			Payload: nil,
 		},
-		Version:    1,
-		Diagnostic: BFDDiagnosticNone,
-		State:      BFDStateDown,
-		Poll:       false,
-		Final:      false,
+		Version:                   1,
+		Diagnostic:                BFDDiagnosticNone,
+		State:                     BFDStateDown,
+		Poll:                      false,
+		Final:                     false,
 		ControlPlaneIndependent:   false,
 		AuthPresent:               true,
 		Demand:                    false,
@@ -196,11 +196,11 @@ func TestBFDAuthTypeKeyedMD5(t *testing.T) {
 			},
 			Payload: nil,
 		},
-		Version:    1,
-		Diagnostic: BFDDiagnosticNone,
-		State:      BFDStateDown,
-		Poll:       false,
-		Final:      false,
+		Version:                   1,
+		Diagnostic:                BFDDiagnosticNone,
+		State:                     BFDStateDown,
+		Poll:                      false,
+		Final:                     false,
 		ControlPlaneIndependent:   false,
 		AuthPresent:               true,
 		Demand:                    false,
@@ -258,11 +258,11 @@ func TestBFDAuthTypeMeticulousKeyedSHA1(t *testing.T) {
 			},
 			Payload: nil,
 		},
-		Version:    1,
-		Diagnostic: BFDDiagnosticNone,
-		State:      BFDStateDown,
-		Poll:       false,
-		Final:      false,
+		Version:                   1,
+		Diagnostic:                BFDDiagnosticNone,
+		State:                     BFDStateDown,
+		Poll:                      false,
+		Final:                     false,
 		ControlPlaneIndependent:   false,
 		AuthPresent:               true,
 		Demand:                    false,

writer.go

@@ -218,7 +218,7 @@ func SerializeLayers(w SerializeBuffer, opts SerializeOptions, layers ...Seriali
 
 // SerializePacket is a convenience function that calls SerializeLayers
 // on packet's Layers().
-// It returns an error if one of the packet layers is not a SerializebleLayer.
+// It returns an error if one of the packet layers is not a SerializableLayer.
 func SerializePacket(buf SerializeBuffer, opts SerializeOptions, packet Packet) error {
 	sls := []SerializableLayer{}
 	for _, layer := range packet.Layers() {