Github user rmetzger commented on the pull request:

    https://github.com/apache/flink/pull/729#issuecomment-107924813
  
    I understand that concern.
    
    But using sysoutput will also be interleaved with the Client sysout 
printing and the regular system logging.
    Also, I think its very bad practice to print stuff using systemout, because 
its not controllable in any way.
    With log4j we can configure the analysis output the way we want.
    if you want the messages to look like regular sysout text, we can specify a 
custom output schema for the classes in the sca java package.


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