Investors have priced PepsiCo's short-term challenges into its stock, creating a solid long-term buying opportunity for patient investors.Investors looking within the consumer staples sector for a quality dividend stock will often choose Coca-Cola (KO 0.55%). And understandably so. Not only are the brands of the beverage industry's biggest name well-established, but its dividend track record speaks for itself. Not only has the company made its quarterly payments like clockwork for decades, it has raised its ...