/usr/lib/ is in ruby-terminal-table 1.4.5-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/terminal-table/
/usr/lib/ruby/vendor_ruby/terminal-table/row.rb
/usr/lib/ruby/vendor_ruby/terminal-table/version.rb
/usr/lib/ruby/vendor_ruby/terminal-table/core_ext.rb
/usr/lib/ruby/vendor_ruby/terminal-table/cell.rb
/usr/lib/ruby/vendor_ruby/terminal-table/table.rb
/usr/lib/ruby/vendor_ruby/terminal-table/separator.rb
/usr/lib/ruby/vendor_ruby/terminal-table/import.rb
/usr/lib/ruby/vendor_ruby/terminal-table/table_helper.rb
/usr/lib/ruby/vendor_ruby/terminal-table/style.rb
/usr/lib/ruby/vendor_ruby/terminal-table.rb