Add copyright

k-tsj · k-tsj · commit 6b2c3ab9989c · 2014-05-31T13:44:09.000+09:00
diff --git a/lib/power_assert.rb b/lib/power_assert.rb
@@ -1,3 +1,7 @@
+# power_assert.rb
+#
+# Copyright (C) 2014 Kazuki Tsujimoto, All rights reserved.
+
 require 'power_assert/version'
 
 require 'ripper'
