Fix IPMI and code typo changes

Changes:
      - IPMI changes refer ipmitool/ipmitool#96
        IPMITOOL_1_8_19: Release Version 1.8.19
      - Spelling fix

Tested:
     - NA

Change-Id: Iad514073ae28461158de8b39aded1efdcd146c52
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/managers/test_bmc_network_protocol.robot b/redfish/managers/test_bmc_network_protocol.robot
index c338853..61fb9c5 100644
--- a/redfish/managers/test_bmc_network_protocol.robot
+++ b/redfish/managers/test_bmc_network_protocol.robot
@@ -73,7 +73,7 @@
     Rprint Vars  ntp
     Valid Value  ntp["ProtocolEnabled"]  valid_values=[True]
 
-Verify Disble NTP
+Verify Disable NTP
     [Documentation]  Verify NTP protocol mode can be disabled.
     [Teardown]  Restore NTP Mode
     [Tags]  Verify_Disable_NTP