[skip ci] Fix copy right in querynode.go (#9410)

Signed-off-by: Nxige-16 <xi.ge@zilliz.com>

internal/querycoord/querynode.go

-//// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-////
-//// Licensed 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.
+// Copyright (C) 2019-2020 Zilliz. All rights reserved.
 //
+// Licensed 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 querycoord
 
 import (