restore C99 compliance.

Arrigo Marchiori

2016-10-14 0347bda93a1f251c8bc36d56d5dd9c02daf8af64

 libscpi/inc/scpi/types.h

@@ -328,7 +328,7 @@
        union {
            double value;
            int32_t tag;
        };
        } content;
        scpi_unit_t unit;
        int8_t base;
    };