[jira] [Created] (HDFS-6171) Move OfflineImageViewer -o option into optional parameters

[Akira AJISAKA (JIRA)]

Akira AJISAKA created HDFS-6171:
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             Summary: Move OfflineImageViewer -o option into optional parameters
                 Key: HDFS-6171
                 URL: https://issues.apache.org/jira/browse/HDFS-6171
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: tools
    Affects Versions: 2.5.0
            Reporter: Akira AJISAKA
            Priority: Minor


Now OfflineImageViewer -o (output) option is required but the option is not 
used for Web processor (WebImageViewer).
I suggest to move -o option into optional parameters and make default to output 
to {{System.out}}.



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