lncli/bugfix: use int64slice for update node announcement features

As is, we'll never get any add/remove features because the flag is
set as an int 64 slice but accessed as an int slice (which has no
value, and the cli doesn't fail if the flag doesn't exist).

cmd/lncli/peersrpc_active.go

@@ -126,7 +126,7 @@ func updateNodeAnnouncement(ctx *cli.Context) error {
 
 	if ctx.IsSet("feature_bit_add") {
 		change = true
-		for _, feature := range ctx.IntSlice("feature_bit_add") {
+		for _, feature := range ctx.Int64Slice("feature_bit_add") {
 			action := &peersrpc.UpdateFeatureAction{
 				Action:     peersrpc.UpdateAction_ADD,
 				FeatureBit: lnrpc.FeatureBit(feature),
@@ -137,7 +137,7 @@ func updateNodeAnnouncement(ctx *cli.Context) error {
 
 	if ctx.IsSet("feature_bit_remove") {
 		change = true
-		for _, feature := range ctx.IntSlice("feature_bit_remove") {
+		for _, feature := range ctx.Int64Slice("feature_bit_remove") {
 			action := &peersrpc.UpdateFeatureAction{
 				Action:     peersrpc.UpdateAction_REMOVE,
 				FeatureBit: lnrpc.FeatureBit(feature),