Boost.Ratio: Set vacpp as unusable

[SVN r68415]

status/explicit-failures-markup.xml

@@ -481,7 +481,7 @@
     <!-- chrono -->
     <library name="chrono">
         <mark-unusable>
-            <toolset name="borland"/>
+            <toolset name="borland-*"/>
             <toolset name="vacpp"/>
             <note author="Vicente J. Botet Escriba">
                 The compiler does not support features that are essential for the library.
@@ -4501,7 +4501,7 @@ for more information.
     <library name="ratio">
       <mark-unusable>
         <toolset name="borland-*"/>
-        <toolset name="pathscale*"/>
+        <toolset name="vacpp"/>
         <note author="Vicente J. Botet Escriba">
             The compiler does not support features that are essential for the library.
         </note>