MAPREDUCE-5971. Move the default options for distcp -p to DistCpOptionSwitch. Contributed by Charles Lamb.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611217 13f79535-47bb-0310-9956-ffa450edef68
HDFS-2538. option to disable fsck dots. Contributed by Mohammad Kamrul Islam.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1611220 13f79535-47bb-0310-9956-ffa450edef68