marked stdio_filter_test as failing intermittently for como

[SVN r29447]

status/explicit-failures-markup.xml

@@ -900,6 +900,11 @@
                 compiler can't compile "windows.h" in strict mode
             </note>
         </mark-expected-failures>
+        <mark-expected-failures>
+            <test name="stdio_filter_test"/>
+            <toolset name="*como-4_3_3*"/>
+            <note author="Jonathan Turkanis" refid="0"/>
+        </mark-expected-failures>
         <mark-expected-failures>
             <test name="direct_adapter_test"/>
             <test name="gzip_test"/>
@@ -912,6 +917,7 @@
             <test name="finite_state_filter_test"/>
             <toolset name="borland-5_6_4"/>
             <toolset name="msvc*"/>
+            <toolset name="vc7"/>
             <toolset name="gcc-2.95.3-stlport-4.5.3-linux"/>
             <note author="Jonathan Turkanis" refid="2"/>
         </mark-expected-failures>