Oops, need to spell sunpro toolset name correctly.

[SVN r34531]

status/explicit-failures-markup.xml

@@ -4027,7 +4027,7 @@ 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