Deal with broken _NET_WORKAREA more gracefully
Deal with broken _NET_WORKAREA more gracefully

fvwm seems to have problems keeping _NET_WORKAREA in sync with
the number of desktops. Instead of reading garbage, silently use
the full screen as workarea for desktops that are not covered
by the _NET_WORKAREA property.

https://bugzilla.gnome.org/show_bug.cgi?id=698248

Adamovskiy/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,chergert/gtk,alexlarsson/gtk,jigpu/gtk,jadahl/gtk,jadahl/gtk,davidgumberg/gtk,alexlarsson/gtk,davidgumberg/gtk,Lyude/gtk-,jigpu/gtk,grubersjoe/adwaita,jessevdk/gtk,jigpu/gtk,alexlarsson/gtk,jadahl/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,msteinert/gtk,davidgumberg/gtk,jessevdk/gtk,jadahl/gtk,Lyude/gtk-,Sidnioulz/SandboxGtk,alexlarsson/gtk,Lyude/gtk-,grubersjoe/adwaita,grubersjoe/adwaita,davidgumberg/gtk,msteinert/gtk,grubersjoe/adwaita,msteinert/gtk,chergert/gtk,chergert/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,msteinert/gtk,Adamovskiy/gtk,jadahl/gtk,msteinert/gtk,jadahl/gtk,davidgumberg/gtk,Lyude/gtk-,Lyude/gtk-,grubersjoe/adwaita,jigpu/gtk,jessevdk/gtk,alexlarsson/gtk,ahodesuka/gtk,ahodesuka/gtk,chergert/gtk,Sidnioulz/SandboxGtk,Lyude/gtk-,alexlarsson/gtk,chergert/gtk,chergert/gtk,Sidnioulz/SandboxGtk,Lyude/gtk-,Sidnioulz/SandboxGtk,davidgumberg/gtk,ahodesuka/gtk,grubersjoe/adwaita,jigpu/gtk,jessevdk/gtk,msteinert/gtk,Adamovskiy/gtk,Adamovskiy/gtk,jigpu/gtk,Lyude/gtk-,jadahl/gtk,jessevdk/gtk,alexlarsson/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,chergert/gtk,grubersjoe/adwaita,ahodesuka/gtk,jessevdk/gtk,Adamovskiy/gtk,ahodesuka/gtk,alexlarsson/gtk,jessevdk/gtk,jigpu/gtk,chergert/gtk,ahodesuka/gtk,Adamovskiy/gtk