[DGD] Printing out nil?

[Jay Shaffstall]

I have a crash that happens when I try to print out the value of a variable 
that's nil.  This is using version 1.2p1 of DGD, as I've had trouble 
getting sources compiled on my machine to use the later versions.

The code is of the form:

	string str;

	...do some things, str may or may not get set to a valid string...

	send_message ("String is : " + str);

This crashes DGD.  My questions:

1) Is it illegal to concatenate a nil reference onto a string, or might I 
have another problem entirely?

2) I would have expected the nil reference to be replaced in the string 
concatenation with something like "(nil)".  Is that supposed to happen, or 
do I need to wrap all such possible nil references with conditionals to get 
that sort of output?

Thanks,
Jay

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