Sets or unsets the "label" attribute of @menu_item.
If @label is non-%NULL it is used as the label for the menu item. If it is %NULL then the label attribute is unset.
the label to set, or %NULL to unset
2.32
See Implementation
Sets or unsets the "label" attribute of @menu_item.
If @label is non-%NULL it is used as the label for the menu item. If it is %NULL then the label attribute is unset.