[GHC] #10974: Fix SysTools.readElfSection on platforms where "readelf" have different name

[GHC]

#10974: Fix SysTools.readElfSection on platforms where "readelf" have different
name
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        Reporter:  ony               |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
                                     |  driver/recomp011
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by ony):

 * status:  new => patch


Comment:

 See arc diff for this: https://phabricator.haskell.org/D1326

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10974#comment:1>
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