/usr/ is in ruby-escape 0.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/rubygems-integration/2.0/specifications/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/escape.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-escape/
/usr/share/doc/ruby-escape/README
/usr/share/doc/ruby-escape/changelog.Debian.gz
/usr/share/doc/ruby-escape/copyright
/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/escape-0.2.gemspec
/usr/share/rubygems-integration/2.0/
/usr/share/rubygems-integration/2.0/specifications/escape-0.2.gemspec