Updated list of broken toolsets for Wave.

[SVN r28004]

status/explicit-failures-markup.xml

@@ -1940,6 +1940,7 @@ for more information.
     <library name="wave">
         <mark-unusable>
             <toolset name="msvc"/>
+            <toolset name="sunpro-5_3"/>
             <toolset name="msvc-stlport"/>
             <toolset name="borland-5_5_1"/>
             <toolset name="borland-5_6_4"/>