Fix ASAN unit tests for travis

Jan Breuer

2018-01-29 79ca37aefec8e26a1a74b0b2b9c36e0c9af6d9c1

 libscpi/src/ieee488.c

@@ -153,6 +153,9 @@
        case SCPI_REG_QUESE:
            regUpdate(context, SCPI_REG_QUES);
            break;
        case SCPI_REG_QUESC:
            regUpdateEvent(context, old_val, val, SCPI_REG_QUES);
            break;
        case SCPI_REG_OPER:
            regUpdateSTB(context, val, SCPI_REG_OPERE, STB_OPS);
            break;