Use explicit toolset name until wildcards in the middle work.

[SVN r28704]

status/explicit-failures-markup.xml

@@ -2001,7 +2001,7 @@ for more information.
 
         <mark-expected-failures>
             <test name="*_lib"/>
-            <toolset name="gcc-*-sunos"/>
+            <toolset name="gcc-3_4_3-sunos"/>
             <note author="Caleb Epstein">
 		SunOS does not provide static versions of -lrt or
 		-lthread, and gcc -static refuses to link with any