Extend lexer test coverage

Jan Breuer

2015-12-05 461c70ac5da7a8eeb7ca07e2c5a8cdb2ab25d11c

 libscpi/src/units.c

@@ -283,7 +283,7 @@
            scpiLex_CharacterProgramData(&state, &token);

            /* convert string to special number type */
            SCPI_ParamToChoice(context, &token, special, &tag);
            result = SCPI_ParamToChoice(context, &token, special, &tag);

            value->special = TRUE;
            value->tag = tag;