Add code coverage support

Jan Breuer

2015-11-26 cca8a549714c291512daaa9850cbfa1c73623b54

 libscpi/src/fifo.c

@@ -50,7 +50,7 @@
        return FALSE;
    }

    if(value) {
    if (value) {
        *value = fifo->data[fifo->rd];
    }