break;
case lc_opt_type_boolean:
case lc_opt_type_negboolean:
res = snprintf(buf, n, "%s", *((int *) data) ? "true" : "false");
break;
case lc_opt_type_string:
break;
case lc_opt_type_boolean:
case lc_opt_type_negboolean:
res = snprintf(buf, n, "%s", *((int *) data) ? "true" : "false");
break;
case lc_opt_type_string: