Add transfer container annotations so that the array is freed but not
the (static) family objects.
/**
* pango_context_list_families:
* @context: a #PangoContext
- * @families: (out) (array length=n_families): location to store a pointer to
+ * @families: (out) (array length=n_families) (transfer container): location to store a pointer to
* an array of #PangoFontFamily *. This array should be freed
* with g_free().
* @n_families: (out): location to store the number of elements in @descs
/**
* pango_font_map_list_families:
* @fontmap: a #PangoFontMap
- * @families: (out) (array length=n_families): location to store a pointer to an array of #PangoFontFamily *.
+ * @families: (out) (array length=n_families) (transfer container): location to store a pointer to an array of #PangoFontFamily *.
* This array should be freed with g_free().
* @n_families: (out): location to store the number of elements in @families
*