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-rw-r--r--test/rexml/listener.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rexml/listener.rb b/test/rexml/listener.rb
index 81c9e8822c..6bede03c59 100644
--- a/test/rexml/listener.rb
+++ b/test/rexml/listener.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
class Listener
attr_reader :ts, :te
attr_reader :normalize