Orange-based Bergen Brunswig Corp. dashed off a settlement offer to its former president, Donald Roden, to resolve a wrongful-discharge lawsuit. Theoffer stated only that Roden would receive a $5 million lump sum plus attorney’s fees, and his retirement and other benefits would be continued. After Roden signed the agreement, Bergen Brunswig claimed it had intended for Roden’s retirement benefits to be included in the lump sum payout. But a