+my $homeurl =
+ 'http://www.chiark.greenend.org.uk/ucgi/~ijackson/git/rrd-graphs/';
+print <<END
+<hr>Generated by "<a href="$homeurl">rrd-graphs</a>".
+Copyright 2010,2012 Ian Jackson. There is <strong>NO WARRANTY</strong>.
+Available under the Affero Public General Licence, version 3 or any
+later version. You may download the
+<a href="$self/rrd-graphs.tar.gz">source code</a>
+for the version currently running here.
+END