/usr/ is in ruby-zip 1.2.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/zip/
/usr/lib/ruby/vendor_ruby/zip/central_directory.rb
/usr/lib/ruby/vendor_ruby/zip/compressor.rb
/usr/lib/ruby/vendor_ruby/zip/constants.rb
/usr/lib/ruby/vendor_ruby/zip/crypto/
/usr/lib/ruby/vendor_ruby/zip/crypto/encryption.rb
/usr/lib/ruby/vendor_ruby/zip/crypto/null_encryption.rb
/usr/lib/ruby/vendor_ruby/zip/crypto/traditional_encryption.rb
/usr/lib/ruby/vendor_ruby/zip/decompressor.rb
/usr/lib/ruby/vendor_ruby/zip/deflater.rb
/usr/lib/ruby/vendor_ruby/zip/dos_time.rb
/usr/lib/ruby/vendor_ruby/zip/entry.rb
/usr/lib/ruby/vendor_ruby/zip/entry_set.rb
/usr/lib/ruby/vendor_ruby/zip/errors.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/
/usr/lib/ruby/vendor_ruby/zip/extra_field/generic.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/ntfs.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/old_unix.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/universal_time.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/unix.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/zip64.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field/zip64_placeholder.rb
/usr/lib/ruby/vendor_ruby/zip/extra_field.rb
/usr/lib/ruby/vendor_ruby/zip/file.rb
/usr/lib/ruby/vendor_ruby/zip/filesystem.rb
/usr/lib/ruby/vendor_ruby/zip/inflater.rb
/usr/lib/ruby/vendor_ruby/zip/input_stream.rb
/usr/lib/ruby/vendor_ruby/zip/ioextras/
/usr/lib/ruby/vendor_ruby/zip/ioextras/abstract_input_stream.rb
/usr/lib/ruby/vendor_ruby/zip/ioextras/abstract_output_stream.rb
/usr/lib/ruby/vendor_ruby/zip/ioextras.rb
/usr/lib/ruby/vendor_ruby/zip/null_compressor.rb
/usr/lib/ruby/vendor_ruby/zip/null_decompressor.rb
/usr/lib/ruby/vendor_ruby/zip/null_input_stream.rb
/usr/lib/ruby/vendor_ruby/zip/output_stream.rb
/usr/lib/ruby/vendor_ruby/zip/pass_thru_compressor.rb
/usr/lib/ruby/vendor_ruby/zip/pass_thru_decompressor.rb
/usr/lib/ruby/vendor_ruby/zip/streamable_directory.rb
/usr/lib/ruby/vendor_ruby/zip/streamable_stream.rb
/usr/lib/ruby/vendor_ruby/zip/version.rb
/usr/lib/ruby/vendor_ruby/zip.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-zip/
/usr/share/doc/ruby-zip/README.Debian
/usr/share/doc/ruby-zip/README.md.gz
/usr/share/doc/ruby-zip/TODO
/usr/share/doc/ruby-zip/changelog.Debian.gz
/usr/share/doc/ruby-zip/copyright
/usr/share/doc/ruby-zip/examples/
/usr/share/doc/ruby-zip/examples/example.rb
/usr/share/doc/ruby-zip/examples/example_filesystem.rb
/usr/share/doc/ruby-zip/examples/example_recursive.rb
/usr/share/doc/ruby-zip/examples/gtk_ruby_zip.rb
/usr/share/doc/ruby-zip/examples/qtzip.rb
/usr/share/doc/ruby-zip/examples/write_simple.rb
/usr/share/doc/ruby-zip/examples/zipdialogui.ui.gz
/usr/share/doc/ruby-zip/examples/zipfind.rb
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/rubyzip-1.2.1.gemspec