[GHC] #4298: [TYPO] Text.PrettyPrint.HughesPJ

[GHC]

#4298: [TYPO] Text.PrettyPrint.HughesPJ
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    Reporter:  mathstuf          |       Owner:               
        Type:  task              |      Status:  new          
    Priority:  normal            |   Component:  Documentation
     Version:  6.12.3            |    Keywords:               
    Testcase:                    |   Blockedby:               
          Os:  Unknown/Multiple  |    Blocking:               
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown 
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 The docs contain the following relation that has to hold true for nest:

     nest k (x <> y) = nest k z <> nest k y

 I imagine the ``z`` on the right is meant to be an ``x``.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4298>
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