Don't error out on empty error message hints
Don't error out on empty error message hints

jeremiahyan/codecombat,icodegame/codecombat,javatlacati/codecombat,kidaa/codecombat,Zerrien/codecombat,codecombat/codecombat,Zerrien/codecombat,codecombat/codecombat,jeremiahyan/codecombat,Zerrien/codecombat,fabichoi/codecombat,javatlacati/codecombat,javatlacati/codecombat,icodegame/codecombat,javatlacati/codecombat,codecombat/codecombat,icodegame/codecombat,kidaa/codecombat,fabichoi/codecombat,kidaa/codecombat,codecombat/codecombat,fabichoi/codecombat,fabichoi/codecombat,icodegame/codecombat,Zerrien/codecombat,codecombat/codecombat,jeremiahyan/codecombat,jeremiahyan/codecombat,kidaa/codecombat,javatlacati/codecombat