lnrpc+lncli: rename skip_peer_alias_lookup to reflect opt-in behavior

cmd/lncli/cmd_payments.go

@@ -1371,12 +1371,16 @@ func forwardingHistory(ctx *cli.Context) error {
 		maxEvents = uint32(m)
 	}
 
+	// By default we will look up the peers' alias information unless the
+	// skip_peer_alias_lookup flag is specified.
+	lookupPeerAlias := !ctx.Bool("skip_peer_alias_lookup")
+
 	req := &lnrpc.ForwardingHistoryRequest{
-		StartTime:           startTime,
-		EndTime:             endTime,
-		IndexOffset:         indexOffset,
-		NumMaxEvents:        maxEvents,
-		SkipPeerAliasLookup: ctx.Bool("skip_peer_alias_lookup"),
+		StartTime:       startTime,
+		EndTime:         endTime,
+		IndexOffset:     indexOffset,
+		NumMaxEvents:    maxEvents,
+		PeerAliasLookup: lookupPeerAlias,
 	}
 	resp, err := client.ForwardingHistory(ctxc, req)
 	if err != nil {

lnrpc/lightning.proto

@@ -4059,9 +4059,9 @@ message ForwardingHistoryRequest {
     // The max number of events to return in the response to this query.
     uint32 num_max_events = 4;
 
-    // Informs the server if the peer alias lookup per forwarding event
-    // should be skipped in order to improve performance.
-    bool skip_peer_alias_lookup = 5;
+    // Informs the server if the peer alias should be looked up for each
+    // forwarding event.
+    bool peer_alias_lookup = 5;
 }
 message ForwardingEvent {
     // Timestamp is the time (unix epoch offset) that this circuit was

lnrpc/lightning.swagger.json

@@ -4496,9 +4496,9 @@
           "format": "int64",
           "description": "The max number of events to return in the response to this query."
         },
-        "skip_peer_alias_lookup": {
+        "peer_alias_lookup": {
           "type": "boolean",
-          "description": "Informs the server if the peer alias lookup per forwarding event\nshould be skipped in order to improve performance."
+          "description": "Informs the server if the peer alias should be looked up for each\nforwarding event."
         }
       }
     },

rpcserver.go

@@ -6892,7 +6892,7 @@ func (r *rpcServer) ForwardingHistory(ctx context.Context,
 			AmtOutMsat:  uint64(amtOutMsat),
 		}
 
-		if !req.SkipPeerAliasLookup {
+		if req.PeerAliasLookup {
 			aliasIn, err := getRemoteAlias(event.IncomingChanID)
 			if err != nil {
 				return nil, fmt.Errorf("unable to lookup peer "+