https://bugs.winehq.org/show_bug.cgi?id=52866
--- Comment #4 from Nikolay Sivov bunglehead@gmail.com --- Quick test shows that:
GetLocaleInfoEx(L"ar-SA", LOCALE_SNEGATIVESIGN, ...);
returns single char "-" on Windows, and strings with a marker "\200e-" on Wine. So probably this is about generated data.