Updating CHANGES.txt for TEZ-2882 (rbalamohan)
Updating CHANGES.txt for TEZ-2882 (rbalamohan)

ueshin/apache-tez,apache/tez,ChetnaChaudhari/tez,apache/tez,ueshin/apache-tez,ChetnaChaudhari/tez,sidseth/tez,ueshin/apache-tez,ueshin/apache-tez,apache/tez,ueshin/apache-tez,apache/tez,ChetnaChaudhari/tez,sidseth/tez,sidseth/tez,sidseth/tez,apache/tez,sidseth/tez,ChetnaChaudhari/tez,ChetnaChaudhari/tez