fix: correct err returned, removed named returns

.gitignore

@@ -40,3 +40,6 @@ cmd/benchmark/benchmark
 ideas.txt
 
 cmd/protoc-gen-gorums/gengorums/template_static.go.bak
+
+# jetbrains IDE files
+.idea/

rpc.go

@@ -18,18 +18,18 @@ type CallData struct {
 // RPCCall executes a remote procedure call on the node.
 //
 // This method should be used by generated code only.
-func (n *RawNode) RPCCall(ctx context.Context, d CallData) (resp protoreflect.ProtoMessage, err error) {
+func (n *RawNode) RPCCall(ctx context.Context, d CallData) (protoreflect.ProtoMessage, error) {
 	md := &ordering.Metadata{MessageID: n.mgr.getMsgID(), Method: d.Method}
 	replyChan := make(chan response, 1)
 	n.channel.enqueue(request{ctx: ctx, msg: &Message{Metadata: md, Message: d.Message}}, replyChan, false)
 
 	select {
 	case r := <-replyChan:
 		if r.err != nil {
-			return nil, err
+			return nil, r.err
 		}
 		return r.msg, nil
 	case <-ctx.Done():
-		return resp, ctx.Err()
+		return nil, ctx.Err()
 	}
 }

rpc_test.go

@@ -0,0 +1,12 @@
+package gorums_test
+
+import (
+	"testing"
+)
+
+func TestRPCCall(t *testing.T) {
+	// TODO implement test for RPCCall
+	if true == false {
+		t.Errorf("should be true")
+	}
+}