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-rw-r--r--test/rdoc/test_rdoc_code_object.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rdoc/test_rdoc_code_object.rb b/test/rdoc/test_rdoc_code_object.rb
index 2fb6ac23a5..74b88557e0 100644
--- a/test/rdoc/test_rdoc_code_object.rb
+++ b/test/rdoc/test_rdoc_code_object.rb
@@ -1,4 +1,5 @@
# coding: US-ASCII
+# frozen_string_literal: false
require File.expand_path '../xref_test_case', __FILE__