update sht20 and ds18b20 makefile

guowenxue

2018-10-14 f72b50b8cae06a852dac56f4601dead94e58d9e7

 program/modules/ds18b20/makefile

@@ -2,7 +2,7 @@
BIN_NAME=ds18b20

all: 
   gcc ds18b20.c -o ${BIN_NAME}
   gcc ${BIN_NAME}.c -o ${BIN_NAME}

clean: 
   rm -f ${BIN_NAME}