[GHC] #11565: Restore code to handle '-fmax-worker-args' flag

[GHC]

#11565: Restore code to handle '-fmax-worker-args' flag
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        Reporter:  slyfox            |                Owner:
            Type:  feature request   |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.10.3
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by slyfox):

 * status:  new => closed
 * failure:  None/Unknown => Runtime performance bug
 * resolution:   => fixed
 * milestone:   => 8.2.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11565#comment:9>
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