[Maxima] Bugfix for GosperSum (about Andrej's fix)?

[Michel Van den Bergh]

Andrej wrote
>
> if op(expr)="-" then
>  return(shiftQuoAuxHypCheck(-expr, k, hyp_flag))
>
> This will work for -n*n! also.
>
> Andrej
I found the problem. Your email has a typo. I should be

if op(expr)="-" then
    shiftQuoHypCheckAux(-expr, k, hyp_flag)

Thanks for looking into this.

Michel