/usr/ is in ruby-mixlib-install 0.7.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ruby-mixlib-install/support/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/mixlib/
/usr/lib/ruby/vendor_ruby/mixlib/install.rb
/usr/lib/ruby/vendor_ruby/mixlib/install/
/usr/lib/ruby/vendor_ruby/mixlib/install/util.rb
/usr/lib/ruby/vendor_ruby/mixlib/install/version.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/mixlib-install-0.7.1.gemspec
/usr/share/ruby-mixlib-install/
/usr/share/ruby-mixlib-install/support/install_command.sh
/usr/share/ruby-mixlib-install/support/install_command.ps1
/usr/share/doc/
/usr/share/doc/ruby-mixlib-install/
/usr/share/doc/ruby-mixlib-install/copyright
/usr/share/doc/ruby-mixlib-install/changelog.Debian.gz