md5sum and xauth

[Rüdiger Bodack]

Hi all, 

I am trying to create a magic cookie for .Xauthority, using this nice
command line I found somewhere:
dd if=/dev/urandom count=1|md5sum|sed -e 's/^/add :0 . /'|xauth -q

It seems that the md5sum shows unexpected behavior on my W2K. md5sum always
gives something like this:
f3f7d6844351a99aaeb44751037112ad *-
The *- seems to be strange. Am I am doing a stupid mistake?

Thanks for helping,

Rüdiger