Fix a gross bug in the ! operator optimization code.  The following kind of expressions caused a dereferencation of an uninitialized malloc area, yielding wrong expression evaluation at best, and core dumps at worst (malloc.conf -> AJ):
Fix a gross bug in the ! operator optimization code.  The following
kind of expressions caused a dereferencation of an uninitialized malloc
area, yielding wrong expression evaluation at best, and core dumps at
worst (malloc.conf -> AJ):

	find ... ! \( expr1 ! expr2 \) ...

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