fix license check

Makefile

@@ -63,7 +63,7 @@ deps: prepare
 
 .PHONY: license
 license: clean prepareLic
-	$(GO_LICENSE_CHECKER) -v -a -r -i vendor,protocol/triple/triple_protocol,protocol/triple/reflection,cmd/protoc-gen-go-triple/internal $(LICENSE_DIR)/license.txt . go && [[ -z `git status -s` ]]
+	$(GO_LICENSE_CHECKER) -v -a -r -i vendor,protocol/triple/triple_protocol,protocol/triple/reflection,metadata/triple_api/proto $(LICENSE_DIR)/license.txt . go && [[ -z `git status -s` ]]
 
 .PHONY: verify
 verify: clean license test

server/metadata.go

@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package server
 
 import (