Fix in game error message.

[AzeTheGreat]

90% of the error reports I receive as a modder are just the in game crash copied and pasted.  It was hard enough to get people to upload full output logs before, but now it's nearly impossible.  I would argue that the crash shouldn't even be exposed to end users - link them to the output log and tell them to upload it for the mod authors.  If you insist on just giving text (which inevitably means that's all we'll have to work off of), please at least include the actual exception and not just the stack trace.