Minor patch to qcc toolset name for date_time failures.

[SVN r33408]

status/explicit-failures-markup.xml

@@ -956,7 +956,7 @@
             <test name="testtime_wstream"/>
             <test name="testwcustom_time_zone"/>
             <test name="testwposix_time_zone"/>
-            <toolset name="qcc-3.3.5-gpp"/>
+            <toolset name="qcc-3.3.5_gpp"/>
             <note author="Jim Douglas" date="12 Feb 06" refid="36"/>
         </mark-expected-failures>