[GHC] #9360: GHCi: Behave nicely on `-e`, like `ghc` and other programs

[GHC]

#9360: GHCi: Behave nicely on `-e`, like `ghc` and other programs
-------------------------------------+-------------------------------------
        Reporter:  mcandre           |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  GHCi              |                 Version:  7.8.2
      Resolution:                    |                Keywords:  newcomer
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Changes (by thomie):

 * keywords:   => newcomer
 * related:  #9799 =>


Comment:

 The function to change is called `setMode` in `ghc/Main.hs`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9360#comment:4>
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