try to fix cvsweb

From-SVN: r33661

libstdc++-v3/docs/download.html

@@ -26,7 +26,7 @@
        <B>highly</B> recommended, as it will reduce the bandwidth required.
 
    <LI>You can 
-       <A HREF="/cgi-bin/cvsweb.cgi/libstdc++?cvsroot=libstdc++">browse 
+       <A HREF="http://gcc.gnu.org/cgi-bin/cvsweb.cgi/libstdc++?cvsroot=gcc>browse 
        the CVS repository over the web</a>.
   </UL>
 </P>