Unsupported output format plot-svg

[Luis]

$ pstoedit -f plot-svg
"Unsupported output format plot-svg"

but it works in hardy(3.45-2build1) and squeeze(3.45-4),

regards,
Luis.

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$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 9.04
Release: 9.04
Codename: jaunty

$ dpkg -s pstoedit
Package: pstoedit
Status: install ok installed
Priority: optional
Section: graphics
Installed-Size: 764
Maintainer: Ubuntu MOTU Developers <email address hidden>
Architecture: i386
Version: 3.45-5
Depends: libc6 (>= 2.1.3), libpstoedit0c2a (>= 3.45), libstdc++6 (>= 4.1.1), ghostscript
Suggests: xfig | ivtools-bin | tgif | transfig
Description: PostScript and PDF files to editable vector graphics converter
 pstoedit converts Postscript and PDF files to various editable
 vector graphic formats including tgif, xfig, PDF graphics, gnuplot format,
 idraw, MetaPost, GNU Metafile, PIC, Kontour and flattened PostScript.
Original-Maintainer: J.H.M. Dassen (Ray) <email address hidden>
Homepage: http://www.pstoedit.net/
============================================================