kernel32/path: Potential off-by-one error, help needed!

[Kirill Smirnov]

Hi!

     While debugging bug #33307 
(http://bugs.winehq.org/show_bug.cgi?id=33307) I found a suspicious 
piece of code, looking like off-by-one error.

     Unfortunately, I'm not familiar with this part of wine and I don't 
know how to write corresponding test case.

     If you familiar with this module, please, take a look at this 
wanna-be-a-bug and the proposed patch.

--
Kirill