/usr/ is in ruby-sprockets-rails 2.0.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/sprockets/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/sprockets/rails.rb
/usr/lib/ruby/vendor_ruby/sprockets/railtie.rb
/usr/lib/ruby/vendor_ruby/sprockets/rails/
/usr/lib/ruby/vendor_ruby/sprockets/rails/legacy_asset_url_helper.rb
/usr/lib/ruby/vendor_ruby/sprockets/rails/helper.rb
/usr/lib/ruby/vendor_ruby/sprockets/rails/legacy_asset_tag_helper.rb
/usr/lib/ruby/vendor_ruby/sprockets/rails/task.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-sprockets-rails/
/usr/share/doc/ruby-sprockets-rails/changelog.Debian.gz
/usr/share/doc/ruby-sprockets-rails/copyright
/usr/share/doc/ruby-sprockets-rails/README.md.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/sprockets-rails-2.0.1.gemspec
/usr/share/rubygems-integration/2.0/
/usr/share/rubygems-integration/2.0/specifications/
/usr/share/rubygems-integration/2.0/specifications/sprockets-rails-2.0.1.gemspec