/usr/lib/ruby/vendor_ruby/action_view/helpers/ is in ruby-actionpack-2.3 2.3.14-5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/action_view/helpers/active_record_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/asset_tag_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/atom_feed_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/benchmark_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/cache_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/capture_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/csrf_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/date_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/debug_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/form_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/form_options_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/form_tag_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/javascript_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/number_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/prototype_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/raw_output_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/record_identification_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/record_tag_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/sanitize_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/scriptaculous_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/tag_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/text_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/translation_helper.rb
/usr/lib/ruby/vendor_ruby/action_view/helpers/url_helper.rb