Update comments about non-null terminated strings

Jan Breuer

2014-09-17 eaf97cc4bd995ee99e3d4403289fce87df8fd76c

 examples/common/scpi-def.cpp

@@ -172,5 +172,6 @@
    /* units */ scpi_units_def,
    /* special_numbers */ scpi_special_numbers_def,
    /* user_context */ NULL,
    /* idn */ {"MANUFACTURE", "INSTR2013", NULL, "01-02"},
};