Mention that it's safe to use <cell-packing> tag for any GtkCellLayout
in GTK+ since they *all* use an underlying GtkCellArea (at least they
will once the other branches land).
* </example>
*
* Furthermore for implementations of GtkCellLayout that use a #GtkCellArea
- * to lay out cells (most, of not all GtkCellLayouts in GTK+ use a GtkCellArea)
+ * to lay out cells (all GtkCellLayouts in GTK+ use a GtkCellArea)
* <link linkend="cell-properties">cell properties</link> can also be defined
* in the format by specifying the custom <cell-packing> attribute which
* can contain multiple <property> elements defined in the normal way.