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-rw-r--r--test/rexml/test_xml_declaration.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rexml/test_xml_declaration.rb b/test/rexml/test_xml_declaration.rb
index a96d40c542..a4d97c41d0 100644
--- a/test/rexml/test_xml_declaration.rb
+++ b/test/rexml/test_xml_declaration.rb
@@ -1,4 +1,5 @@
# -*- coding: utf-8 -*-
+# frozen_string_literal: false
#
# Created by Henrik MÃ¥rtensson on 2007-02-18.
# Copyright (c) 2007. All rights reserved.