XLISP minor bug fix

[John Woods]

I have just been told that someone brought up XLISP without casualty (yay!)
but it seemed to be missing the functions (gc) and (mem).  It turns out
that, due to subrs now appearing on property lists, there was some 
initialization needed that isn't done until xlinit().

To fix:  in XLISP.C, change
	xlinit();
to
	xlinit();
	xlMMinit();

and in XLDMEM.C,

xldmeminit() {
	<various equalities>
! }
! xlMMinit() {				TURN ONE FUNCTION TO TWO!
	xlfsubr(...

I do hope this is the only fix I need, but keep those cards and letters
coming, folks!  Enjoy!
-- 
John Woods, Charles River Data Systems
decvax!frog!john, mit-eddie!jfw, JFW at MIT-XX

Guns don't kill people, I kill people.