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-rw-r--r--test/rss/test_xml-stylesheet.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rss/test_xml-stylesheet.rb b/test/rss/test_xml-stylesheet.rb
index c67922f4ec..71be1d8fea 100644
--- a/test/rss/test_xml-stylesheet.rb
+++ b/test/rss/test_xml-stylesheet.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require "rexml/document"
require_relative "rss-testcase"