/usr/lib/ruby/vendor_ruby/ is in ghi 1.2.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/ghi.rb
/usr/lib/ruby/vendor_ruby/ghi/
/usr/lib/ruby/vendor_ruby/ghi/commands/
/usr/lib/ruby/vendor_ruby/ghi/commands/label.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/open.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/command.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/status.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/edit.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/show.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/assign.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/list.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/enable.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/comment.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/disable.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/version.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/close.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/milestone.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/help.rb
/usr/lib/ruby/vendor_ruby/ghi/commands/config.rb
/usr/lib/ruby/vendor_ruby/ghi/formatting/
/usr/lib/ruby/vendor_ruby/ghi/formatting/colors.rb
/usr/lib/ruby/vendor_ruby/ghi/formatting.rb
/usr/lib/ruby/vendor_ruby/ghi/web.rb
/usr/lib/ruby/vendor_ruby/ghi/editor.rb
/usr/lib/ruby/vendor_ruby/ghi/authorization.rb
/usr/lib/ruby/vendor_ruby/ghi/commands.rb
/usr/lib/ruby/vendor_ruby/ghi/client.rb