[haskeline] #113: Use CAString FFI functions instead of CString ones

[haskeline]

#113: Use CAString FFI functions instead of CString ones
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Reporter:  batterseapower  |       Owner:     
    Type:  enhancement     |      Status:  new
Priority:  minor           |   Milestone:     
 Version:                  |    Keywords:     
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 Haskeline uses Foreign.C.String.*CString to marshal locale names. Locale
 names will always be encoded in ASCII, so it would probably be prudent to
 use the *CAString variants instead to prevent use of the locale encoding
 from screwing things up.

 Attached patch achieves this.

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Ticket URL: <http://trac.haskell.org/haskeline/ticket/113>
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