[GHC] #9839: RTS options parser silently accepts invalid flags

[GHC]

#9839: RTS options parser silently accepts invalid flags
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        Reporter:  adamgundry        |                   Owner:  nkartashov
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  7.12.1
       Component:  Runtime System    |                 Version:  7.8.3
      Resolution:                    |                Keywords:  newcomer
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #4243             |  Differential Revisions:  Phab:D1039
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Changes (by nkartashov):

 * differential:  Phab:D748 => Phab:D1039


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9839#comment:10>
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