-/* Add thing type of "id", with .corpse_id defaulting to "id" to
- * world.thing_types, .name to "(none)" and the remaining values to 0. If "id"
- * is not >= 0 and <= UINT8_MAX, use lowest unused id. Return thing type.
+/* Add thing type of "id" to world.thing_types, with .corpse_id defaulting to
+ * the new thing type's .id, .name to "(none)" and the remaining values to 0. If
+ * "id" is not >= 0 and <= UINT8_MAX, use lowest unused id. Return thing type.