Task SW-111: small change in test call to not be confusing

LCU/checkhardware/test/t_check_hardware.py

@@ -275,7 +275,7 @@ class TestCheckHardware(unittest.TestCase):
             # -TST (test mode)
             # -e5: (element test in mode 5)
             # Names optimized for disk space
-            testargs = ["check_hardware.py", '-TST', '-s5']
+            testargs = ["check_hardware.py", '-TST', '-e5']
             with patch.object(sys, 'argv', testargs):
                 # trigger action
                 check_hardware.main() # Warning: Something acts as a fork bomb when mocks are not setup properly!