[GHC] #3351: Generated ghc man page missing xrefs

[GHC]

#3351: Generated ghc man page missing xrefs
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        Reporter:  kaol              |                Owner:
            Type:  bug               |               Status:  new
        Priority:  lowest            |            Milestone:  8.0.1
       Component:  Documentation     |              Version:  6.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Documentation     |  Unknown/Multiple
  bug                                |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Things are slightly better now since we generate the manpage via Sphinx,
 although there is still room for improvement. You now see something like
 this,
 {{{
        -Wall  enable almost all warnings (details in options-sanity)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3351#comment:15>
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