[GHC] #14459: `make sdist-ghc` broken

[GHC]

#14459: `make sdist-ghc` broken
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        Reporter:  hvr               |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.4.1
       Component:  Build System      |              Version:  8.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * milestone:   => 8.4.1


Comment:

 We'll need this for 8.2.1.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14459#comment:4>
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