[GHC] #8551: Fix formatting in docs at one place

[GHC]

#8551: Fix formatting in docs at one place
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        Reporter:  Tarrasch          |            Owner:
            Type:  task              |           Status:  patch
        Priority:  lowest            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"1bffa2b2e7b7d1a829dff44256a5d1da3f2aef88/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="1bffa2b2e7b7d1a829dff44256a5d1da3f2aef88"
 Fix formatting (fixes #8551)

 Signed-off-by: Arash Rouhani <rarash at student.chalmers.se>
 Reviewed-by: Austin Seipp <austin at well-typed.com>
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8551#comment:3>
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