Enhancing onos-run-karaf to run clean installation when tar.gz changes.

Change-Id: Ie25bbb58fa48d7711308346cfc41f1b4c94394e7
diff --git a/tools/test/bin/stc b/tools/test/bin/stc
index e52d29b..9334987 100755
--- a/tools/test/bin/stc
+++ b/tools/test/bin/stc
@@ -35,5 +35,5 @@
 
 # Run stc
 [ -z "$stcDebug" ] && DEBUG_OPTS=""
-stcColor=${stcColor:-$interactive} stcDumpLogs=${stcDumpLogs:-$notInteractive} \
+stcTitle=${stcTitle:-} stcColor=${stcColor:-$interactive} stcDumpLogs=${stcDumpLogs:-$notInteractive} \
     java $DEBUG_OPTS -jar $JAR $scenario "$@"