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    Date: 20 March 1981 22:58-EST
    From: Robert W. Kerns <RWK at MIT-MC>
    .  .  .
    Both LISPM and MacLisp return the first argument.  Since this is parallel
    assignment, I'm less bothered by this than I might be, although I still
    think it's less than optimal from a consistancy viewpoint.
MacLISP's action isn't an independent viewpoint -- I originally implemented
PSETQ as a macro which returned the last value, a la SETQ, and then
someone pointed out the discrepancy between that and the LISPM.  Not
wanting to make waves (against stone walls?), I just quietly changed it
one day.  However, I fear that there are now numerous places where the
value of PSETQ is being used.