/usr/ is in ruby-chef-config 12.7.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/chef-config/
/usr/lib/
/usr/lib/ruby/vendor_ruby/chef-config/windows.rb
/usr/lib/ruby/vendor_ruby/chef-config/logger.rb
/usr/lib/ruby/vendor_ruby/chef-config/workstation_config_loader.rb
/usr/lib/ruby/vendor_ruby/chef-config/package_task.rb
/usr/lib/ruby/vendor_ruby/chef-config/exceptions.rb
/usr/lib/ruby/vendor_ruby/chef-config/version.rb
/usr/lib/ruby/vendor_ruby/chef-config/path_helper.rb
/usr/lib/ruby/vendor_ruby/chef-config/config.rb
/usr/lib/ruby/vendor_ruby/chef-config.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/chef-config-12.7.2.gemspec
/usr/share/doc/
/usr/share/doc/ruby-chef-config/
/usr/share/doc/ruby-chef-config/copyright
/usr/share/doc/ruby-chef-config/changelog.Debian.gz