[pstricks] recent error instroduced.

[Etienne Riga]

I get two false with an old installation

     PSTricks \fileversion{97 patch 11} \filedate{1999/08/03}
     pst-node \fileversion{97 patch 10} \filedate{1999/09/03}

but not with the more recent

    PSTRICKS \fileversion{1.05} \filedate{2004/06/29}
                corrected for the spurious blank
    pst-node \fileversion{97 patch 11} \filedate{2000/11/09}

Étienne Riga