update awk link; from franco leiva

Author: tj

policy.html

@@ -248,7 +248,7 @@ <h3>Specific Cases</h3>
 <p>
 Additionally, OpenBSD includes some other AT&amp;T code with non-restrictive
 copyrights, such as the reference implementation of
-<a href="http://cm.bell-labs.com/cm/cs/who/bwk/awk.tar.gz">awk</a>.
+<a href="https://github.com/onetrueawk/awk">awk</a>.
 <p>
 
 <dt>Caldera<dd><p>