Revert 78f893bdbb1e4bf3e3eac41a59d39854b8045150

These brackets are supposed to not be replaced here, but in the source files, see paragraph right above the changed line.

Fixes #1212 again.
diff --git a/COPYING b/COPYING
index 3837304..131cb1d 100644
--- a/COPYING
+++ b/COPYING
@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2016 Google Inc.
+   Copyright [yyyy] [name of copyright owner]
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.