Fix a broken link and state the full name of the university providing

the correct one.

PR:             docs/140581
Submitted by:   Jason Helfman <jhelfman at e dash e dot com>
Approved by:    jkois (mentor)

en_US.ISO8859-1/books/handbook/mirrors/chapter.sgml

@@ -483,7 +483,8 @@ Warning: Permanently added 'anoncvs.freebsd.org' (DSA) to the list of known host
 	<itemizedlist>
 	  <listitem>
 	    <para><ulink 
-		url="http://www.csc.calpoly.edu/~dbutler/tutorials/winter96/cvs/">CVS Tutorial</ulink> from Cal Poly.</para>
+		url="http://users.csc.calpoly.edu/~gfisher/classes/205/handouts/cvs-basics.html">CVS Tutorial</ulink> from California 
+		Polytechnic State University.</para>
 	  </listitem>
 
 	  <listitem>