/usr/ is in ruby-riemann-client 0.2.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/riemann.rb
/usr/lib/ruby/vendor_ruby/riemann/
/usr/lib/ruby/vendor_ruby/riemann/query.rb
/usr/lib/ruby/vendor_ruby/riemann/message.rb
/usr/lib/ruby/vendor_ruby/riemann/version.rb
/usr/lib/ruby/vendor_ruby/riemann/client.rb
/usr/lib/ruby/vendor_ruby/riemann/state.rb
/usr/lib/ruby/vendor_ruby/riemann/auto_state.rb
/usr/lib/ruby/vendor_ruby/riemann/event.rb
/usr/lib/ruby/vendor_ruby/riemann/attribute.rb
/usr/lib/ruby/vendor_ruby/riemann/client/
/usr/lib/ruby/vendor_ruby/riemann/client/tcp.rb
/usr/lib/ruby/vendor_ruby/riemann/client/udp.rb
/usr/lib/ruby/vendor_ruby/riemann/client/tcp_socket.rb
/usr/lib/ruby/vendor_ruby/riemann/metric_thread.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-riemann-client/
/usr/share/doc/ruby-riemann-client/copyright
/usr/share/doc/ruby-riemann-client/changelog.Debian.gz
/usr/share/doc/ruby-riemann-client/README.markdown
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/riemann-client-0.2.3.gemspec