[Bug 43492] Improve 64-Bit exe error message

https://bugs.winehq.org/show_bug.cgi?id=43492

--- Comment #2 from [e-mail] ---
(In reply to Fabian Maurer from comment #1)
> Is this really an issue? The problem at hand is pretty clear.

It was certainly confusing for me at first, it took me a while to figure out
what the issue was. "Bad EXE format" is pretty vague.
I think the most important message (with the keywords 64-Bit and 32-Bit wine
prefix) should be at the end, where it's the most visible.

At least, it's definitely a duplicate message that should (imo) be cleaned up
eventually. Definitely not high priority though.