[ONOS-6901] Fix how the systemTest does not return any result when it forced to quit the test

Change-Id: If93c48d46e8dc2494046b42de21f732775d7f520
diff --git a/TestON/tests/FUNC/FUNCnetconf/dependencies/netconf.py b/TestON/tests/FUNC/FUNCnetconf/dependencies/netconf.py
index bed1670..ce8620a 100644
--- a/TestON/tests/FUNC/FUNCnetconf/dependencies/netconf.py
+++ b/TestON/tests/FUNC/FUNCnetconf/dependencies/netconf.py
@@ -64,9 +64,7 @@
     except pexpect.ExceptionPexpect as e:
         main.log.exception( self.name + ": Pexpect exception found: " )
         main.log.error( self.name + ":    " + self.handle.before )
-        main.cleanup()
-        main.exit()
-
+        main.cleanAndExit()
 
 def createConfig( main ):
     """