/usr/share/doc/ is in ruby-locale 2.1.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby-locale/
/usr/share/doc/ruby-locale/copyright
/usr/share/doc/ruby-locale/changelog.Debian.gz
/usr/share/doc/ruby-locale/changelog.gz
/usr/share/doc/ruby-locale/README.rdoc
/usr/share/doc/ruby-locale/examples/
/usr/share/doc/ruby-locale/examples/sample_1.rb
/usr/share/doc/ruby-locale/examples/cgi/
/usr/share/doc/ruby-locale/examples/cgi/locale.css
/usr/share/doc/ruby-locale/examples/cgi/cookie.cgi
/usr/share/doc/ruby-locale/examples/cgi/http.rb
/usr/share/doc/ruby-locale/examples/cgi/index.cgi
/usr/share/doc/ruby-locale/examples/cgi/README
/usr/share/doc/ruby-locale/examples/rack/
/usr/share/doc/ruby-locale/examples/rack/locale_rack.rb
/usr/share/doc/ruby-locale/examples/rack/hello_rack.rb
/usr/share/doc/ruby-locale/examples/rack/hello_rack.ru
/usr/share/doc/ruby-locale/examples/rack/README
/usr/share/doc/ruby-locale/examples/sample_info.rb