Oops, need to spell sunpro toolset name correctly.

[SVN r34531]

status/explicit-failures-markup.xml

@@ -3930,7 +3930,7 @@ for more information.
             <test name="is_reference_test"/>
             <test name="rank_test"/>
             <test name="tricky_function_type_test"/>
-            <toolset name="sunp-5.8"/>
+            <toolset name="sun-5.8"/>
 
             <note author="John Maddock">
                 The Type Traits library is broken when used with Sunpro-5.8 and the