cygpath 2.6.0: -m " C:" and garbled output

[Andre Maroneze <maroneze at gmail dot com>]

I just noticed a difference in behavior between versions 2.5.2 and
2.6.0 of cygpath (the ones I could test): if I run

cygpath -m " C:"

(notice the space before the C, inside the double quotes)

In cygpath 2.6.0, this outputs C? (C followed by the unicode character
0xF03A, which is a ":" (0x3A) character, but prefixed with "F0").
In cygpath 2.5.2 (and 2.4.1, which I also could test), it outputs C:,
as I would expect.

This happens on both Windows 7 and Windows 8.1, and not only on my
machine, so it seems fairly deterministic.

Is it some sort of undefined behavior to give an argument to cygpath
starting with a space inside double quotes?

Otherwise, is this an intended change to 2.6.0?

Regards,
Andre

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