/usr/lib/ruby/ is in ruby-fog-radosgw 0.0.4-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/fog/
/usr/lib/ruby/vendor_ruby/fog/radosgw.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/
/usr/lib/ruby/vendor_ruby/fog/radosgw/multipart_utils/
/usr/lib/ruby/vendor_ruby/fog/radosgw/multipart_utils/headers.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/multipart_utils.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/utils.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/user_utils.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/get_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/disable_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/update_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/user.json
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/create_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/delete_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/list_users.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/provisioning/enable_user.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/usage/
/usr/lib/ruby/vendor_ruby/fog/radosgw/requests/usage/get_usage.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/version.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/usage.rb
/usr/lib/ruby/vendor_ruby/fog/radosgw/provisioning.rb