fixed <ostream> note

[SVN r23965]

status/explicit-failures-markup.xml

@@ -591,7 +591,7 @@ for more information.
             <mark-failure>
                 <toolset name="gcc-2.95.3-linux"/>
                 <toolset name="gcc-2.95.3-stlport-4.5.3-linux"/>
-                <note>Interval IO require <ostream> header.</note>
+                <note>Interval IO require &lt;ostream&gt; header.</note>
             </mark-failure>
         </test>
     </library>