missing line break in 5.9.2 output

In Maxima 5.9.1 we have

(C2) for n from 1 thru 20 do sprint( fib(n) )$
1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597
2584 4181 6765

If we use sprint in 5.9.2 (sprint is commented out in
5.9.2-plot.lisp, but I don't see any alternative to
sprint) we have

(C3) for n from 1 thru 20 do sprint( fib(n) )$1 1 2 3 5
8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765

The same problem I have with an output function written
by myself:

Maxima 5.9.1:
(C3) printf(true,"~d",42)$
42
(C4)

Maxima 5.9.2:
(C4) printf(true,"~d",42)$42
(C5)

I don't have any idea to solve that problem with a
function.

Volker van Nek