zookeeper: fomula always ignore --c option #15267

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Commits on Oct 3, 2012
  1. @repeatedly

    zookeeper: fomula always ignore --c option

    repeatedly committed Oct 3, 2012
    'or' and '=' pair cause unexpected result in 'or' chain.
    
    Behavior check code:
    ```ruby
    a = nil
    b = nil
    c = 0
    p a or b or c     #=> nil - old code
    p (a or b) or c   #=> nil
    p ((a or b) or c) #=> 0   - fixed code
    ```