adding copyright to test and removing comment for non-exported struct

pkg/kafka/auth/scram.go

@@ -69,7 +69,6 @@ func setSCRAMConfiguration(config *ScramConfig, saramaConfig *sarama.Config) err
 	return nil
 }
 
-// SCRAMClient takes a dereference to a scram client/conversation and a hash function
 type scramClient struct {
 	*scrampkg.Client
 	*scrampkg.ClientConversation

pkg/kafka/auth/scram_test.go

@@ -1,3 +1,17 @@
+// Copyright (c) 2020 The Jaeger Authors.
+//
+// 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 auth_test
 
 import (