collect TeX output

[Christophe TROESTLER]

Hi,

It seems that GiNaC, when (for example) collecting expressions and
then printing them to LaTeX adds some braces in additions to
parentheses.  For example

    symbol x("x"), y("y"), t("t");
    ex e = x*t + y*t;
    collect(e,t).print(GiNaC::print_latex());

ouputs 

t {(y+x)}

Is there any way (an option?) to remove the extra braces?  Indeed,
they force TeX NOT to BREAK the expression (i.e., it must fit on a
single line) which is problematic when the expression is long.

Thanks,
ChriS