/usr/ is in ruby-ascii85 1.0.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/
/usr/bin/ascii85
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/Ascii85/
/usr/lib/ruby/vendor_ruby/Ascii85/version.rb
/usr/lib/ruby/vendor_ruby/ascii85.rb
/usr/share/
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/ascii85.1.gz
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/1.8/
/usr/share/rubygems-integration/1.8/specifications/
/usr/share/rubygems-integration/1.8/specifications/Ascii85-1.0.2.gemspec
/usr/share/rubygems-integration/1.9.1/
/usr/share/rubygems-integration/1.9.1/specifications/
/usr/share/rubygems-integration/1.9.1/specifications/Ascii85-1.0.2.gemspec
/usr/share/doc/
/usr/share/doc/ruby-ascii85/
/usr/share/doc/ruby-ascii85/README.rdoc
/usr/share/doc/ruby-ascii85/copyright
/usr/share/doc/ruby-ascii85/changelog.Debian.gz