[CM] Funky output in error messages

[vladimir florentino]

There's something funky with some error messages. I'm not sure if it's
something I'm doing on my end, but there's nothing that jumps out at
me. I'm using version of date "9-Nov-2022"

If I evaluate a non existent function (a b), I get this error message:

    ;unbound variable a in (a b)
    ; (a b)

If I do it again, I get this:

    ;unbound variable a in (a b)
    ; (a b)
    ; (31)
    ; (a b)

If I do it repeatedly, I get these outputs:

    ;unbound variable a in (a b)
    ; (a b)
    ; (a b)
    ; (31)
    ; (a b)


    ;unbound variable a in (a b)
    ; (a b)
    ; (a b)
    ; (a b)
    ; (31)


    ;unbound variable a in (a b)
    ; (a b)
    ; (a b)
    ; (a b)
    ; (a b)


    ;unbound variable a in (a b)
    ; (a b)
    ; (a b)
    ; (a b)
    ; (a b)