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-rw-r--r--lib/yahns/log.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/yahns/log.rb b/lib/yahns/log.rb
index b8015c4..990978f 100644
--- a/lib/yahns/log.rb
+++ b/lib/yahns/log.rb
@@ -1,6 +1,7 @@
 # -*- encoding: binary -*-
 # Copyright (C) 2013-2015 all contributors <yahns-public@yhbt.net>
 # License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+# frozen_string_literal: true
 
 # logging-related utility functions for all of yahns
 module Yahns::Log # :nodoc: