routerrpc: run rpc-format on routerrpc

lnrpc/routerrpc/router.proto

@@ -333,8 +333,8 @@ message BuildRouteResponse {
     lnrpc.Route route = 1;
 }
 
-
-message SubscribeHtlcEventsRequest{}
+message SubscribeHtlcEventsRequest {
+}
 
 /**
 HtlcEvent contains the htlc event that was processed. These are served on a
@@ -414,9 +414,11 @@ message ForwardEvent{
     HtlcInfo info = 1;
 }
 
-message ForwardFailEvent{}
+message ForwardFailEvent {
+}
 
-message SettleEvent{}
+message SettleEvent {
+}
 
 message LinkFailEvent {
     // Info contains details about the htlc that we failed.
@@ -521,5 +523,6 @@ service Router {
     SubscribeHtlcEvents creates a uni-directional stream from the server to
     the client which delivers a stream of htlc events.
     */
-    rpc SubscribeHtlcEvents (SubscribeHtlcEventsRequest) returns (stream HtlcEvent);
+    rpc SubscribeHtlcEvents (SubscribeHtlcEventsRequest)
+        returns (stream HtlcEvent);
 }