20250719
 Omit the initial space sometimes printed before the name of a
function that accepts a variable number of arguments.  For example,

	set I; param p{I};
	data; param :I: p := b 3.7 c 2.9;
	display min(p['b'], p['c']);

printed " min(p['b'],p['c']) = 2.9".
  Fix a (harmless) bug that sometimes gave an erroneous warning,
such as "solve_out: nldc = 79824, P->ldef = 79974".
  Fix seldom seen bugs with a defined variable whose defining
expression is linear but involves nonlinear defined variables.
Example:

	var x{i in 1..3} in [-10, 10] := i;
	var y = 2*x[1] + 1;
	var y1 = 3*y + x[2];
	var z = (y1-1)^2;
	var w = 3*z + x[3] + 2;
	var v = (w - 3)^2;
	var u = 3*v + 4;
	print y1; # OK
	minimize zot: 4*u;
	print y1; # wrong: printed 14 rather than 11
	solve; # gave
	#MINOS 5.51: unbounded (or badly scaled) problem.
	#0 iterations
	#Nonlin evals: obj = 10, grad = 9.
	# after the fix
	#MINOS 5.51: optimal solution found.
	#5 iterations, objective 16
	#Nonlin evals: obj = 15, grad = 14.