Add QT5 build shell script

guowenxue

2019-05-06 b9a783dac7d473d8dd2bc64ddade1823866f2a23

 mqttd/main.c

@@ -60,7 +60,7 @@
        }
        else
        {
            printf("SHT2X Temperature=%lf ℃ relative humidity=%lf%\n", temp, rh);
            printf("SHT2X Temperature=%lfC, Relative humidity=%lf%% \n", temp, rh);
        }