HDFS-4643. Fix flakiness in TestQuorumJournalManager. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1466253 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9437. TestNativeIO#testRenameTo fails on Windows due to assumption that POSIX errno is embedded in NativeIOException. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1466306 13f79535-47bb-0310-9956-ffa450edef68