Output from XBOFSWin::getWinUsbStringDescriptor sometimes includes junk characters

[OOPMan]

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Sometimes calls to XBOFSWin::getWinUsbStringDescriptor produced a valid string with garbage characters at the end.

This interferes with the visual display if information but also sometimes causes issues due to the Serial Number field of a device "changing" due to the garbage characters at the end, which in turn causes profile settings, etc to be "forgotten"