borland 5.8.1 borken wrt xpressive

[SVN r32687]

status/explicit-failures-markup.xml

@@ -3660,6 +3660,7 @@ for more information.
         </mark-unusable>
         <mark-unusable>
             <toolset name="borland-5_6_4"/>
+            <toolset name="borland-5_8_1"/>
             <note author="Eric Niebler">
                 Boost.Fusion doesn't work on this compiler.
             </note>