Correct broken links to C++ standard papers. Refs #9212.

[SVN r86524]

negators.html

@@ -99,7 +99,7 @@ public:
   <p>Note that if the Predicate's <tt>argument_type</tt> is a reference, the
   type of <tt>operator()</tt>'s argument would be a reference to a reference.
   Currently this is illegal in C++ (but see the <a href=
-  "http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/cwg_active.html#106">C++
+  "http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#106">C++
   standard core language active issues list</a>).</p>
 
   <p>However, if we instead defined <tt>operator()</tt> to accept Predicate's