[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:
            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:                    |
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Comment (by thomie):

 Replying to [comment:15 hvr]:
 > Here's two less controversial variants to `-Nmax` I wouldn't object to:
 >
 >  - `-maxN` (this follows common conventions for `max` used for upper-
 bounding, c.f. `find . -mindepth <n> -maxdepth <n>`
 >  - Use a single letter option, e.g. `-n <n>`

 I'm ok with either of those as well.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10728#comment:16>
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