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### _Why are the changes needed?_
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To close#1786
Main object will init logger with isInterpreter=true, which changes logger to WARN level.
In this pr, we do not use Main.output as `spark.repl.class.outputDir`
### _How was this patch tested?_
Passed existing tests.
Closes#1828 from turboFei/repl_warn.
Closes#1786
91fc327c [Fei Wang] address commments
762d148c [Fei Wang] refactor
4e18f367 [Fei Wang] do not use main output dir
Authored-by: Fei Wang <fwang12@ebay.com>
Signed-off-by: Fei Wang <fwang12@ebay.com>
c29c4430aa