Improve error message when starting secure DN without jsvc
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Key: HDFS-1759
URL: https://issues.apache.org/jira/browse/HDFS-1759
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Trivial
Fix For: 0.23.0
Users find the current message "Cannot start secure cluster without privileged
resources." to be confusing -- it's not clear what actions to take to correct
the error.
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