Handle IRStmt_MFence in the tools.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3217 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/lackey/lk_main.c b/lackey/lk_main.c
index 18e6b11..92accc0 100644
--- a/lackey/lk_main.c
+++ b/lackey/lk_main.c
@@ -184,7 +184,7 @@
             break;
 
          default:
-            addStmtToIRBB( bb, dopyIRStmt(st));
+            addStmtToIRBB( bb, st );
       }
    }