Apache Hadoop qbt Report: trunk+JDK8 on Linux/x86

For more details, see https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/454/ [Jul 4, 2017 5:02:14 AM] (aajisaka) HDFS-12079. Description of dfs.block.invalidate.limit is incorrect in [Jul 4, 2017 5:51:52 AM] (aajisaka) HDFS-12078. Add time unit to the description of property -1

Apache Hadoop qbt Report: trunk+JDK8 on Linux/ppc64le

For more details, see https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-ppc/365/ [Jul 4, 2017 5:02:14 AM] (aajisaka) HDFS-12079. Description of dfs.block.invalidate.limit is incorrect in [Jul 4, 2017 5:51:52 AM] (aajisaka) HDFS-12078. Add time unit to the description of property [Jul 4