[GHC] #12673: bkpcabal01 testcase fails with spurious output on stderr on Darwin

[GHC]

#12673: bkpcabal01 testcase fails with spurious output on stderr on Darwin
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        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Package system    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2584
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"7b060e12efbfed2f29136fd605f76e8d6ca79f85/ghc"
 7b060e12/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7b060e12efbfed2f29136fd605f76e8d6ca79f85"
 Generate a unique symbol for signature object stub files, fixes #12673

 Test Plan: validate

 Reviewers: austin, bgamari

 Reviewed By: bgamari

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2585

 GHC Trac Issues: #12673
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12673#comment:3>
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