clarify response when failed to detect hadoop version
clarify response when failed to detect hadoop version

GayathriMurali/HiBench,yhli365/HiBench,ConeyLiu/HiBench,maismail/HiBench,arijitt/HiBench,ConeyLiu/HiBench,yhli365/HiBench,arijitt/HiBench,nareshgundla/HiBench,samklr/HiBench,nsabharwal/HiBench,cemsbr/HiBench,sanjeevtripurari/HiBench,ConeyLiu/HiBench,eriknor/HiBench,nareshgundla/HiBench,GayathriMurali/HiBench,maismail/HiBench,qiansl127/HiBench,nsabharwal/HiBench,sanjeevtripurari/HiBench,cemsbr/HiBench,ConeyLiu/HiBench,GayathriMurali/HiBench,samklr/HiBench,samklr/HiBench,nareshgundla/HiBench,IMCG/HiBench,arijitt/HiBench,GayathriMurali/HiBench,nareshgundla/HiBench,yhli365/HiBench,Acidburn0zzz/HiBench,Acidburn0zzz/HiBench,yhli365/HiBench,arijitt/HiBench,qiansl127/HiBench,nsabharwal/HiBench,eriknor/HiBench,IMCG/HiBench,IMCG/HiBench,maismail/HiBench,sanjeevtripurari/HiBench,maismail/HiBench,eriknor/HiBench,cemsbr/HiBench,nsabharwal/HiBench,bit1129/HiBench,sanjeevtripurari/HiBench,qiansl127/HiBench,Acidburn0zzz/HiBench,samklr/HiBench,Acidburn0zzz/HiBench,cemsbr/HiBench,IMCG/HiBench,bit1129/HiBench,qiansl127/HiBench,eriknor/HiBench,bit1129/HiBench,bit1129/HiBench