groff -Tdvi prints a cryptic error message

[sds]

Binary package hint: groff

Description: Ubuntu 9.04
Release: 9.04
Package: groff
State: installed
Automatically installed: yes
Version: 1.18.1.1-22build1

"groff -Tdvi" prints 2 errors and 2 warnings on every invocation:

$ touch zz.1
$ groff -Tdvi -mandoc zz.1 > /dev/null
/usr/share/groff/1.18.1/font/devdvi/M:6: error: bad width for `��'
troff: warning: can't find font `M'
/usr/share/groff/1.18.1/font/devdvi/G:6: error: bad width for `��'
troff: warning: can't find font `G'
$

this is a debian packaging bug, not an upstream bug, see
<http://article.gmane.org/gmane.comp.printing.groff.bugs/1355>
<http://article.gmane.org/gmane.comp.printing.groff.bugs/1357>

see also
<https://bugzilla.redhat.com/show_bug.cgi?id=89210>

[Colin Watson (cjwatson)]

Already fixed in Ubuntu 9.10 and beyond; see the linked Debian bug report. groff 1.20 is too intrusive a change to make to Ubuntu 9.04, though.