[GHC] #5741: openFile should fail if null bytes are in the argument

[GHC]

#5741: openFile should fail if null bytes are in the argument
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    Reporter:  Veinor            |       Owner:                         
        Type:  feature request   |      Status:  new                    
    Priority:  high              |   Milestone:  7.6.1                  
   Component:  libraries/base    |     Version:  7.2.1                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:  Unknown           |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
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Comment(by simonmar):

 Arguably truncation on `NUL` is part of the filesystem semantics of the
 underlying OS, just like `/` being the directory separator.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5741#comment:2>
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