[GitHub] incubator-griffin issue #332: fix a bad practice

[toyboxman]

Github user toyboxman commented on the issue:

    https://github.com/apache/incubator-griffin/pull/332
  
    Hi @whhe 
    
    I got you here. but I wanna clarify why I change it.
    
    Java Formatter suggests % as special notation character instead of '\'
    https://docs.oracle.com/javase/7/docs/api/java/util/Formatter.html
    
    but if you build customized string like statement you mentioned, '\n' is 
all right, however line.separator is better.
    bulkRequestBody.append("\n"); 


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