Integrating csch^2(x) gives an incorrect result

Hi,

I think I've found an error in the integration function.  In case it's
relevant, I'm using

Maxima 5.23.2 http://maxima.sourceforge.net
using Lisp SBCL 1.0.40-1.fc14

The error occurs when integrating (csch(x))^2.


    (%i3) integrate((1/sinh(x))^2,x);
                                           4
    (%o3)                            -------------
                                         - 2 x
                                     2 %e      - 2

According to a book of tables, the integral should be

                    -coth x


Thanks for making available and maintaining the maxima program.  I use
it frequently.

-- 
Frazer