[HDFS-11516] Admin command line should print message to stderr in failure case

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha4
• Assignee: Kai
• Reporter: Kai
• Created: 09/Mar/17 14:01
• Updated: 17/Mar/17 18:34
• Resolved: 17/Mar/17 18:34

Description

AdminHelper and CryptAdmin where prints message to stdout instead of stderr. Since other failure cases prints to stderr, it is necessary to consolidate that manner.

e.g.

      if (args.size() != 1) {
        System.err.println("You must give exactly one argument to -help.");
        return 0;
      }