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-rw-r--r--lib/yahns/queue.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/yahns/queue.rb b/lib/yahns/queue.rb
index 2abdc27..b49ff35 100644
--- a/lib/yahns/queue.rb
+++ b/lib/yahns/queue.rb
@@ -1,5 +1,6 @@
 # Copyright (C) 2013-2014, all contributors
 # License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+# frozen_string_literal: true
 if SleepyPenguin.const_defined?(:Epoll)
   require_relative 'queue_epoll'
 else