return main.TRUE when mininet handle not logged into mininet

Change-Id: I804fd9d8b83117e709a8e665014c2416ffd97161
diff --git a/TestON/drivers/common/cli/emulator/mininetclidriver.py b/TestON/drivers/common/cli/emulator/mininetclidriver.py
index 0a1d25f..cdf30c2 100644
--- a/TestON/drivers/common/cli/emulator/mininetclidriver.py
+++ b/TestON/drivers/common/cli/emulator/mininetclidriver.py
@@ -1961,6 +1961,7 @@
                 elif i == 1:
                     main.log.info( " Mininet trying to exit while not " +
                                    "in the mininet prompt" )
+                    response = main.TRUE
                 elif i == 2:
                     main.log.error( "Something went wrong exiting mininet" )
                 elif i == 3:  # timeout