[GHC] #3911: HughesPJ.vcat should behave like 'foldr ($$) empty', not like 'foldr ($+$) empty'

[GHC]

#3911: HughesPJ.vcat should behave like 'foldr ($$) empty', not like 'foldr ($+$)
empty'
------------------------------------------+---------------------------------
  Reporter:  benedikt                     |          Owner:  igloo           
      Type:  bug                          |         Status:  closed          
  Priority:  high                         |      Milestone:  6.14.1          
 Component:  libraries/pretty             |        Version:  6.12.1          
Resolution:  fixed                        |       Keywords:                  
Difficulty:                               |             Os:  Unknown/Multiple
  Testcase:  T3911                        |   Architecture:  Unknown/Multiple
   Failure:  Incorrect result at runtime  |  
------------------------------------------+---------------------------------
Changes (by igloo):

  * status:  patch => closed
  * testcase:  => T3911
  * resolution:  => fixed


Comment:

 Thanks, patch applied and test added.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3911#comment:3>
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