#3013 unixMenu.test noise

[Don Porter]

With --enable-aqua build on Snow Leopard all
tests in unixMenu.test pass. However, a lot of
noisy lines get spilled onto the console like this:

Fri Sep 14 20:53:44 Donald-Porters-MacBook-Pro.local tktest[56070] <Error>: kCGErrorIllegalArgument: CGSClearWindowTags: Invalid window 0x0

Seems something not right is going on somewhere.