lib/async/redis/context/subscribe.rb in async-redis-0.4.2 vs lib/async/redis/context/subscribe.rb in async-redis-0.4.3

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 # Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
 # Copyright, 2018, by Huba Nagy.
 # 
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal