PROG-BODY

[JONL at MIT-MC (Jon L White)]

CC: NIL at MIT-MC, (BUG LISPM) at MIT-MC, (BUG LISP) at MIT-MC
CC: HENRY at MIT-MC

LISP370 employed a "PROG-SEQ" as a variable-less PROG, so
that contours could be concentrated under one construct, LAMBDA.
The generic- and VAX-specific NIL compiler also does this.
As RMS earlier pointed out, a single named construct should
suffice for all end-user purposes;  we have it now in the
slightly haired regular PROG.  Also happy to hear first vote\n from HENRY that he uses no named constructs ever.