[GitHub] flink issue #4648: [FLINK-7584] [doc] Fix checkstyle version in Setup IDE

[zentol]

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/4648
  
    The documentation already stated that the checkstyle version had to be set 
to 6.19. (Which i think @aljoscha investigated)


---