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-rw-r--r--app/helpers/gantt_helper.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/app/helpers/gantt_helper.rb b/app/helpers/gantt_helper.rb
index 65585898f..10653c32c 100644
--- a/app/helpers/gantt_helper.rb
+++ b/app/helpers/gantt_helper.rb
@@ -1,4 +1,6 @@
# encoding: utf-8
+# frozen_string_literal: false
+
#
# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang