fixed XML validation problem

[SVN r34650]

status/explicit-failures-markup.xml

@@ -4953,7 +4953,7 @@ for more information.
         implementation of vector's swap: it can be easily
         reproduced with the following code snippet:
 
-            typedef std::vector<int> vector_type;
+            typedef std::vector&lt;int&gt; vector_type;
             typedef vector_type::reference reference_type;
 
             vector_type v1(4u, 1);
@@ -4974,3 +4974,4 @@ for more information.
 
 
 
+