Fix changing comments in combineerrors_test.go

Do not change comments in
consumer/consumererror/combineerrors_test.go.

consumer/consumererror/combineerrors_test.go

@@ -1,10 +1,10 @@
-// Copyright  The OpenTelemetry Authors
+// Copyright The OpenTelemetry 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
+//       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,