Fix description of args in Managers suite

Changes:
Fix description of args in Managers suite

Testing:
NA

Change-Id: Id10aa289be9d9be8e1b5b48e842e312fa97226d1
Signed-off-by: Sridevi Ramesh <sridevra@in.ibm.com>
diff --git a/redfish/managers/test_bmc_protocol_settings.robot b/redfish/managers/test_bmc_protocol_settings.robot
index 85003c7..ff05963 100644
--- a/redfish/managers/test_bmc_protocol_settings.robot
+++ b/redfish/managers/test_bmc_protocol_settings.robot
@@ -247,8 +247,9 @@
     [Arguments]  ${ssh_state}  ${ipmi_state}  ${persistency_check}=${False}
 
     # Description of argument(s):
-    # ssh_state     State of SSH to be set (e.g. True, False).
-    # ipmi_state    State of IPMI to be set (e.g. True, False).
+    # ssh_state          State of SSH to be set (e.g. True, False).
+    # ipmi_state         State of IPMI to be set (e.g. True, False).
+    # persistency_check  Persistency check (e.g. True, False).
 
     ${ssh_protocol_state}=  Create Dictionary  ProtocolEnabled=${ssh_state}
     ${ipmi_protocol_state}=  Create Dictionary  ProtocolEnabled=${ipmi_state}