Small fix for GetCurrentDirectoryA()

[Uwe Bonnes]

>>>>> "Felix" == Felix Nawothnig <felix.nawothnig at t-online.de> writes:

    >>> (IsBadWritePtr isn't the fastest thing in the world...)
    Felix> Just looked at the implementation - it does at most
    Felix> (buflen-1)/pagesize+1 memory-references, and since buflen will be
    Felix> MAX_PATH in most cases this just costs us the calling-overhead -
    Felix> which is worth the increased readability.

Write a testcase for our test suite. The tes probaly needs to retrive the
Windows Version
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Uwe Bonnes                bon at elektron.ikp.physik.tu-darmstadt.de

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