[Bug 39770] "Enter/Exit Full Screen" menu didn't be localized.

https://bugs.winehq.org/show_bug.cgi?id=39770

--- Comment #2 from Ken Thomases  ---
What happens if, instead of setting LANG (or LC_ALL), you actually change the
system language in System Preferences > Language & Region?

Cocoa is replacing the menu item that the Mac driver creates programmatically
with its own.  (For example, the Mac driver doesn't have the text "Exit Full
Screen" anywhere in it, but the menu item's title changes to that
automatically.)  I expect that Cocoa is respecting the system language rather
than LANG or LC_ALL.