docs: Add Since for handle_local_options
docs: Add Since for handle_local_options

https://bugzilla.gnome.org/show_bug.cgi?id=764685

endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,MathieuDuponchelle/glib,endlessm/glib,MathieuDuponchelle/glib,endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,MathieuDuponchelle/glib,endlessm/glib,MathieuDuponchelle/glib,endlessm/glib,johne53/MB3Glib,MathieuDuponchelle/glib,johne53/MB3Glib