Hello,

This mechanical change is so that the old complain() mechanism is more 
clearly deprecated.  You can't do a complain() call without declaring a 
``struct deprecated_complaint'' :-)

I'll commit it in a day or so.

For those that are wondering, the big improvement that comes with the 
new interface, vis:

extern void complaint (struct complaints **complaints, const char *fmt,
                        ...) ATTR_FORMAT (printf, 2, 3);

is the ATTR_FORMAT().  It eliminates the risk of a complain call having 
a botched printf format string.

Andrew