/usr/share/ is in ruby-redcloth 4.2.8-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/ruby-redcloth/
/usr/share/doc/ruby-redcloth/textile_reference.html
/usr/share/doc/ruby-redcloth/rdoc/
/usr/share/doc/ruby-redcloth/rdoc/rdoc-style.css
/usr/share/doc/ruby-redcloth/rdoc/files/
/usr/share/doc/ruby-redcloth/rdoc/files/lib/
/usr/share/doc/ruby-redcloth/rdoc/files/lib/case_sensitive_require/
/usr/share/doc/ruby-redcloth/rdoc/files/lib/case_sensitive_require/RedCloth_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/erb_extension_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/formatters/
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/formatters/base_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/formatters/html_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/formatters/latex_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/textile_doc_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/lib/redcloth/version_rb.html
/usr/share/doc/ruby-redcloth/rdoc/files/README_rdoc.html
/usr/share/doc/ruby-redcloth/rdoc/classes/
/usr/share/doc/ruby-redcloth/rdoc/classes/ERB.html
/usr/share/doc/ruby-redcloth/rdoc/classes/ERB/
/usr/share/doc/ruby-redcloth/rdoc/classes/ERB/Util.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/HTML.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/Base.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/LATEX.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/LATEX/
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/Formatters/LATEX/Settings.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/VERSION.html
/usr/share/doc/ruby-redcloth/rdoc/classes/RedCloth/TextileDoc.html
/usr/share/doc/ruby-redcloth/rdoc/fr_file_index.html
/usr/share/doc/ruby-redcloth/rdoc/fr_class_index.html
/usr/share/doc/ruby-redcloth/rdoc/fr_method_index.html
/usr/share/doc/ruby-redcloth/rdoc/index.html
/usr/share/doc/ruby-redcloth/rdoc/created.rid
/usr/share/doc/ruby-redcloth/copyright
/usr/share/doc/ruby-redcloth/README.rdoc.gz
/usr/share/doc/ruby-redcloth/changelog.Debian.gz
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/redcloth.1.gz