Fixed mininet driver stopNet to validate current  prompt part 2
diff --git a/TestON/drivers/common/cli/emulator/mininetclidriver.py b/TestON/drivers/common/cli/emulator/mininetclidriver.py
index 2ba4b6d..7fdf6ae 100644
--- a/TestON/drivers/common/cli/emulator/mininetclidriver.py
+++ b/TestON/drivers/common/cli/emulator/mininetclidriver.py
@@ -1271,7 +1271,7 @@
         response = ''
         if self.handle:
             try:
-        
+                self.handle.sendline("")
                 i = self.handle.expect( [ 'mininet>',
                                           '\$',
                                           pexpect.EOF,