HDFS-7552. Change FsVolumeList toString() to fix TestDataNodeVolumeFailureToleration (Liang Xie via Colin P. McCabe)
MAPREDUCE-6045. need close the DataInputStream after open it in TestMapReduce.java (zxu via rkanter)
HADOOP-11935: Formatting and various corrections.
Merge branch 'apache-trunk' into HADOOP-11395