/usr/ is in ruby-slop 3.4.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/slop/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/slop/option.rb
/usr/lib/ruby/vendor_ruby/slop/commands.rb
/usr/lib/ruby/vendor_ruby/slop.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-slop/
/usr/share/doc/ruby-slop/README.md.gz
/usr/share/doc/ruby-slop/copyright
/usr/share/doc/ruby-slop/changelog.Debian.gz
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/1.9.1/
/usr/share/rubygems-integration/1.9.1/specifications/
/usr/share/rubygems-integration/1.9.1/specifications/slop-3.4.7.gemspec
/usr/share/rubygems-integration/2.0/
/usr/share/rubygems-integration/2.0/specifications/
/usr/share/rubygems-integration/2.0/specifications/slop-3.4.7.gemspec
/usr/share/doc/ruby-slop/CHANGES.md.gz