Update license headers

Liang Mei · meiliang86 · commit ba9501383720 · 2020-07-21T14:18:42.000-07:00
diff --git a/internal/common/backoff/retry_test.go b/internal/common/backoff/retry_test.go
@@ -1,4 +1,5 @@
-// Copyright (c) 2017 Uber Technologies, Inc.
+// Copyright (c) 2017-2020 Uber Technologies Inc.
+// Portions of the Software are attributed to Copyright (c) 2020 Temporal Technologies Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
diff --git a/internal/internal_task_handlers_interfaces_test.go b/internal/internal_task_handlers_interfaces_test.go
@@ -1,4 +1,5 @@
-// Copyright (c) 2017 Uber Technologies, Inc.
+// Copyright (c) 2017-2020 Uber Technologies Inc.
+// Portions of the Software are attributed to Copyright (c) 2020 Temporal Technologies Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
