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

[GHC]

#10974: Fix SysTools.readElfSection on platforms where "readelf" have different
name
-------------------------------------+-------------------------------------
        Reporter:  ony               |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.2
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
                                     |  driver/recomp011
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1326
       Wiki Page:                    |  Phab:D1335 Phab:D1381
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * status:  patch => closed
 * resolution:   => fixed


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10974#comment:13>
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