[GHC] #10408: The behavior of -ignore-dot-ghci and -ghci-script are weird

[GHC]

#10408: The behavior of -ignore-dot-ghci and -ghci-script are weird
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        Reporter:  watashi           |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:  7.12.1
       Component:  GHCi              |                 Version:  7.10.1
      Resolution:  fixed             |                Keywords:
Operating System:  Linux             |            Architecture:  x86
 Type of failure:  Incorrect result  |               Test Case:
  at runtime                         |
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D887
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Comment (by mboes):

 Any chance this fix could be backported to the 7.10 branch? It's affecting
 the safety of distributing GHCi wrappers to users for building custom GHCi
 based interactive environments. These need to turn off reading the user's
 ~/.ghci just in case there's funny stuff in there, while still convincing
 GHCi to read a custom script.ghci during initialization.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10408#comment:7>
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