patch applied (packages/base): Fix a broken invariant

Simon Marlow simonmar at microsoft.com
Thu Mar 16 08:42:11 EST 2006

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Thu Mar 16 05:41:51 PST 2006  Simon Marlow <simonmar at microsoft.com>
  * Fix a broken invariant
  Patch from #694,  for the problem "empty is an identity for <> and $$" is
  currently broken by eg. isEmpty (empty<>empty)"

    M ./Text/PrettyPrint/HughesPJ.hs -4 +14

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