Fix test and examples to work with extended errors

Jan Breuer

2016-04-24 3a0d40729383c42af1cef194abc56182955fb9c9

 examples/test-interactive/main.c

@@ -94,7 +94,8 @@
            scpi_units_def,
            SCPI_IDN1, SCPI_IDN2, SCPI_IDN3, SCPI_IDN4,
            scpi_input_buffer, SCPI_INPUT_BUFFER_LENGTH,
            scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE);
            scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE,
            NULL, 0);

    //printf("%.*s %s\r\n",  3, "asdadasdasdasdas", "b");
    printf("SCPI Interactive demo\r\n");