/usr/ is in ruby-rubytorrent 0.3-4.
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/rubytorrent/
/usr/lib/ruby/vendor_ruby/rubytorrent/util.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/message.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/peer.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/typedstruct.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/metainfo.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/controller.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/server.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/tracker.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/bencoding.rb
/usr/lib/ruby/vendor_ruby/rubytorrent/package.rb
/usr/lib/ruby/vendor_ruby/rubytorrent.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/1.8/
/usr/share/rubygems-integration/1.8/specifications/
/usr/share/rubygems-integration/1.8/specifications/rubytorrent-0.3.gemspec
/usr/share/rubygems-integration/1.9.1/
/usr/share/rubygems-integration/1.9.1/specifications/
/usr/share/rubygems-integration/1.9.1/specifications/rubytorrent-0.3.gemspec
/usr/share/doc/
/usr/share/doc/ruby-rubytorrent/
/usr/share/doc/ruby-rubytorrent/examples/
/usr/share/doc/ruby-rubytorrent/examples/rtpeer.rb
/usr/share/doc/ruby-rubytorrent/examples/make-metainfo.rb
/usr/share/doc/ruby-rubytorrent/examples/dump-peers.rb
/usr/share/doc/ruby-rubytorrent/examples/dump-metainfo.rb
/usr/share/doc/ruby-rubytorrent/examples/rtpeer-ncurses.rb
/usr/share/doc/ruby-rubytorrent/copyright
/usr/share/doc/ruby-rubytorrent/api.txt.gz
/usr/share/doc/ruby-rubytorrent/design.txt
/usr/share/doc/ruby-rubytorrent/README
/usr/share/doc/ruby-rubytorrent/changelog.Debian.gz