[GHC] #11434: Drop bzip2 in favor of xz

[GHC]

#11434: Drop bzip2 in favor of xz
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        Reporter:  bgamari           |                Owner:
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Build System      |              Version:  8.0.1-rc1
      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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Comment (by Ben Gamari <ben@…>):

 In [changeset:"2fd407cd28ea1c8fccb7a93d411d1cee690fa959/ghc" 2fd407c/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="2fd407cd28ea1c8fccb7a93d411d1cee690fa959"
 validate: Use gz compression during bindist check

 Test Plan: validate, check that gz is used

 Reviewers: hvr, austin, thomie

 Reviewed By: thomie

 Differential Revision: https://phabricator.haskell.org/D1788

 GHC Trac Issues: #11434
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11434#comment:2>
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