CANJUERS, France — KNDS, the French-German maker of the Leopard tank and Caesar cannon, is mulling a stock market listing to facilitate growth and corporate partnerships, with a potential timing for the middle of next year, according to a company spokesperson. An initial public offer is one of several options under consideration, with nothing decided for now, KNDS spokesman Gabriel Massoni told Defense News on a trip to the Canjuers military base in southern France on Monday. Still, if KNDS