Add libgpiod build shell script

guowenxue

2021-08-17 cbae784c040317daf1b9f9f8d7e6fdb63736283f

 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;
}