http://bugs.winehq.org/show_bug.cgi?id=21513
--- Comment #3 from Dima Ryazanov dima@gmail.com 2010-01-27 20:19:09 --- I think I explained in the bug report why "env" isn't a good solution.
And, sure, it's a bug in the program - but in practice, it won't occur on Windows because Windows doesn't set those variables.