update 3rdparty local build shell script

guowenxue

2021-08-17 d634817310a7186e9a84a65bb135d850d0adee17

 apue/2.Socket/ds18b20.c

@@ -98,5 +98,7 @@
    /* convert string value to float value */
    *temp = atof(ptr)/1000;
   
    close(fd);

    return 0;
}