/usr/share/doc/ is in ruby-hashery 2.1.1-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/ruby-hashery/
/usr/share/doc/ruby-hashery/demo/
/usr/share/doc/ruby-hashery/demo/02_query_hash.rdoc
/usr/share/doc/ruby-hashery/demo/00_introduction.rdoc
/usr/share/doc/ruby-hashery/demo/08_propery_hash.rdoc
/usr/share/doc/ruby-hashery/demo/10_association.rdoc
/usr/share/doc/ruby-hashery/demo/01_open_hash.rdoc
/usr/share/doc/ruby-hashery/demo/06_open_cascade.rdoc
/usr/share/doc/ruby-hashery/demo/04_static_hash.rdoc
/usr/share/doc/ruby-hashery/demo/05_key_hash.rdoc
/usr/share/doc/ruby-hashery/demo/07_fuzzy_hash.rdoc
/usr/share/doc/ruby-hashery/demo/applique/
/usr/share/doc/ruby-hashery/demo/applique/hashery.rb
/usr/share/doc/ruby-hashery/demo/applique/ae.rb
/usr/share/doc/ruby-hashery/demo/03_casting_hash.rdoc
/usr/share/doc/ruby-hashery/TODO.Debian
/usr/share/doc/ruby-hashery/changelog.gz
/usr/share/doc/ruby-hashery/README.md
/usr/share/doc/ruby-hashery/copyright
/usr/share/doc/ruby-hashery/changelog.Debian.gz