Fix SIZE of Join test report
Fix SIZE of Join test report

at Join test, there are 3 type of SIZE

1. Python,Scala
 SIZE=`dir_size $INPUT_HDFS`
2. Java
 SIZE=`dir_size $INPUT_HDFS/uservisits`
3. Hadoop
 SIZE=`dir_size $OUTPUT_HDFS`

I feel that is not good.
So I propose to use "dir_size $INPUT_HDFS" for result
nareshgundla/HiBench,maismail/HiBench,ConeyLiu/HiBench,qiansl127/HiBench,maismail/HiBench,nareshgundla/HiBench,ConeyLiu/HiBench,qiansl127/HiBench,ConeyLiu/HiBench,qiansl127/HiBench,nareshgundla/HiBench,maismail/HiBench,qiansl127/HiBench,ConeyLiu/HiBench,maismail/HiBench,nareshgundla/HiBench