update iotd 3rdlib build shell script for cjson

guowenxue

2021-05-02 aed475c7a57e329a3e90cce56d00ca997f519cda

 modules/c/ds18b20.c

@@ -32,7 +32,7 @@
                return 1;
        }

        printf("DS19B20 get temperature: %f ℃\n", temp);
        printf("DS18B20 get temperature: %f ℃\n", temp);
        return 0;
}