gEDA-user: gschem postscript workaround

[Karel Kulhavy]

Call ghostscript with
gs -dFIXEDMEDIA -dDEVICEWIDTHPOINTS=595 -dDEVICEHEIGHTPOINTS=841

Then the white strip disappears (and the image is a bit smaller in
height).

CL<