Adding more aggressive and thorough implementation of wipe-out command.

Change-Id: I828ccdc994a490e17c2806d27aa36460da10f795
diff --git a/tools/test/scenarios/net-teardown.xml b/tools/test/scenarios/net-teardown.xml
index fa52ce3..a5d93ee 100644
--- a/tools/test/scenarios/net-teardown.xml
+++ b/tools/test/scenarios/net-teardown.xml
@@ -16,6 +16,6 @@
 <scenario name="net-setup" description="Network teardown steps">
     <group name="Net-Teardown">
         <step name="Stop-Mininet" exec="onos-mininet stop"/>
-        <step name="Wipe-Out-Data-After" requires="~Stop-Mininet" exec="onos-wipe-out"/>
+        <XXXstep name="Wipe-Out-Data-After" requires="~Stop-Mininet" exec="onos-wipe-out"/>
     </group>
 </scenario>
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