-3987). When support is enabled (default), links with non-ASCII bytes
-are translated from their source encoding to UTF-8 before percent-encoding.
+3987). When support is enabled (requires libidn and libiconv), links
+with non-ASCII bytes are translated from their source encoding to UTF-8
+before percent-encoding. IRI support was added by Saint Xavier
+<wget@sxav.eu>, as his project for the Google Summer of Code.