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-rw-r--r--test/helpers/issues_helper_test.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/test/helpers/issues_helper_test.rb b/test/helpers/issues_helper_test.rb
index 6908d5128..61ec5bd74 100644
--- a/test/helpers/issues_helper_test.rb
+++ b/test/helpers/issues_helper_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: false
+
# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#