/usr/ is in ruby-hike 1.2.1-3.
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/hike/
/usr/lib/ruby/vendor_ruby/hike/extensions.rb
/usr/lib/ruby/vendor_ruby/hike/index.rb
/usr/lib/ruby/vendor_ruby/hike/normalized_array.rb
/usr/lib/ruby/vendor_ruby/hike/paths.rb
/usr/lib/ruby/vendor_ruby/hike/trail.rb
/usr/lib/ruby/vendor_ruby/hike.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-hike/
/usr/share/doc/ruby-hike/changelog.Debian.gz
/usr/share/doc/ruby-hike/copyright
/usr/share/doc/ruby-hike/README.md
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/hike-1.2.1.gemspec