short_opt        3902 diff.c         	else if ((argcount = short_opt('l', av, &optarg))) {
short_opt        3906 diff.c         	else if ((argcount = short_opt('S', av, &optarg))) {
short_opt        3910 diff.c         	} else if ((argcount = short_opt('G', av, &optarg))) {
short_opt        3919 diff.c         	else if ((argcount = short_opt('O', av, &optarg))) {