When exporting a figure in png format, give the correct font option to
the print command, prepending -F to Helvetica:12 (fixes Bug#521731).

 -- Rafael Laboissiere <rafael@debian.org>  Wed, 01 Apr 2009 22:15:59 +0200

This patch is in upstream's trunk, but not in the 0.8.2 release.
 
 -- Thomas Weber <thomas.weber.mail@gmail.com>  Tue, 29 Sep 2009 21:54:05 +0200

--- a/qtoctave/src/menus/Plot/Export/png.menu
+++ b/qtoctave/src/menus/Plot/Export/png.menu
@@ -12,7 +12,7 @@
 end{output_list}
 
 begin{command}
-print ("%o1%", "%o2%", "Helvetica:12", "-dpng")
+print ("%o1%", "%o2%", "-FHelvetica:12", "-dpng")
 end{command}
 
 begin{help}