Bug#681180: Should depend on libreoffice-gtk3 rather than libreoffice-gtk

[Bob Bib]

reassign 681180 libreoffice-gnome 1:3.5.4-7
retitle 681180 libreoffice-gnome: Should depend on libreoffice-gtk3 rather than 
libreoffice-gtk
thanks

Reassigned it to the right package.