[GHC] #870: extra commas accepted in import export lists

[GHC]

#870: extra commas accepted in import export lists
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  Reporter:  ross               |          Owner:         
      Type:  bug                |         Status:  new    
  Priority:  normal             |      Milestone:         
 Component:  Compiler (Parser)  |        Version:  6.4.2  
  Severity:  normal             |     Resolution:         
  Keywords:                     |             Os:  Unknown
Difficulty:  Unknown            |   Architecture:  Unknown
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Comment (by duncan):

 Yes, I misunderstood. I make use of the extra comma at the end but not
 lots in the middle. So I have no objection to the change.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/870>
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