/usr/ is in ruby-columnize 0.9.0-1.
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/columnize.rb
/usr/lib/ruby/vendor_ruby/columnize/
/usr/lib/ruby/vendor_ruby/columnize/columnize.rb
/usr/lib/ruby/vendor_ruby/columnize/opts.rb
/usr/lib/ruby/vendor_ruby/columnize/version.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/columnize-0.9.0.gemspec
/usr/share/doc/
/usr/share/doc/ruby-columnize/
/usr/share/doc/ruby-columnize/copyright
/usr/share/doc/ruby-columnize/README.md
/usr/share/doc/ruby-columnize/changelog.Debian.gz