[GHC] #10728: Add e.g. "-N<=4" in addition to the fixed "-N4" and variable "-N" RTS options

[GHC]

#10728: Add e.g. "-N<=4" in addition to the fixed "-N4" and variable "-N" RTS
options
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        Reporter:  rrnewton          |                Owner:  MarcelineVQ
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Runtime System    |              Version:  7.10.2
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #9221, #8224      |  Differential Rev(s):  Phab:D1650,
       Wiki Page:                    |  Phab:D1677
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Changes (by MarcelineVQ):

 * owner:   => MarcelineVQ
 * differential:  Phab:D1650 => Phab:D1650, Phab:D1677


Comment:

 New revision to check out, settled on -maxN and also discovered possible
 -m bug where it silently ignores bad opts that begin with m.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10728#comment:17>
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