CORRECTED-BRIEF-Sonoco posts Q2 GAAP earnings $0.63/share (Aug. 20)

(Corrects core earnings per share in fourth bullet to $0.68 from $0.66 in Aug. 20 item) Aug 20 (Reuters) - Sonoco Products Co : * Reports second quarter and year-to-date 2015 financial results * Q2 GAAP earnings per share $0.63 * Q2 earnings per share view $0.67 -- Thomson Reuters I/B/E/S * Q2 core earnings per share $0.68 * Company completes review of Mexico packaging center misstatements * Restates historical consolidated financial results * Says notifies of late filing of second quarte