Added descriptions to runtest scenarios.
diff --git a/runtest/multicast b/runtest/multicast
index c2fd0d6..14e7828 100644
--- a/runtest/multicast
+++ b/runtest/multicast
@@ -1,3 +1,4 @@
+#DESCRIPTION:Multicast networking tests
 #
 # PLEASE READ THE README FILE IN /multicast BEFORE RUNNING THESE.
 #