adding allow-none and transfer full introspection metadata to pango_layout_set_attributes
adding allow-none and transfer full introspection metadata to pango_layout_set_attributes

kari-lentz/alpha-pango,kari-lentz/alpha-pango,danny-ku/pango,danny-ku/pango,danny-ku/pango,Distrotech/pango,kari-lentz/alpha-pango,Distrotech/pango,Distrotech/pango,kari-lentz/alpha-pango