Fix transfer annotation for pango_font_family_list_faces
Fix transfer annotation for pango_font_family_list_faces

The documentation says 'This array should be freed with g_free() when
it is no longer needed', which really translates to (transfer
container) in introspection annotation jargon.

https://bugzilla.gnome.org/show_bug.cgi?id=677407

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