Winefile: fix "move file" implementation

[Martin Fuchs]

> Of course it does if you call the Unicode functions. Unix systems 
> don't store the filenames in Unicode but use codepages. This codepage 
> may be UTF-8 which is equivalent to Unicode or some other codepage. 
> Wine takes care of converting from that codepage to Unicode.

> There's no Unix function that returns 16bit Unicode characters. But the 
> filenames retrieved from readdir() can easily be converted to Unicode by 
> using MultiByteToWideChar(...CP_UNIX...).

What happens if two mounted drives want to use different code pages?
CP_UNIX is only one constant, and can't handle both cases.
I suspect, there is some inherent problem with this approach.

Regards,

  Martin