ublas test7: more notes

[SVN r23937]

status/explicit-failures-markup.xml

@@ -588,6 +588,11 @@ for more information.
                 the names upper/lower in other namespaces when compiling code in
                 the numeric::interval namespace.</note>
             </mark-failure>
+            <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>
+            </mark-failure>
         </test>
     </library>