[GitHub] spark issue #22747: [MINOR][SQL] Set AddJarCommand return empty

[wangyum]

Github user wangyum commented on the issue:

    https://github.com/apache/spark/pull/22747
  
    Hive will not return 0:
    ```sql
    hive> add jar /Users/yumwang/spark/sql/hive/src/test/resources/TestUDTF.jar;
    Added [/Users/yumwang/spark/sql/hive/src/test/resources/TestUDTF.jar] to 
class path
    Added resources: 
[/Users/yumwang/spark/sql/hive/src/test/resources/TestUDTF.jar]
    hive> 
    ```


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