DCMI: Modified script in ipmi/dcmi/test_dcmi_management_controller.robot

Changes:
  - omit DCMI Management Controller Identifier String as it should stop up to the first null

Tested:
  - Ran ipmi/dcmi/test_dcmi_management_controller.robot

Change-Id: Ica521b5636aa9db825cab17696d48e9035458e53
Signed-off-by: Wilson Suen <wilsons@supermicro.com>
diff --git a/ipmi/dcmi/test_dcmi_management_controller.robot b/ipmi/dcmi/test_dcmi_management_controller.robot
index e32c79c..09c8a48 100644
--- a/ipmi/dcmi/test_dcmi_management_controller.robot
+++ b/ipmi/dcmi/test_dcmi_management_controller.robot
@@ -134,6 +134,7 @@
 
     ${mcid_get_cmd}=  Catenate  ${DCMI_RAW_CMD['DCMI']['MANAGEMENT_CONTROLLER_IDENTIFIER_STRING']['GET']}
     ${resp}=  Run External IPMI Raw Command  ${mcid_get_cmd}
+    ${resp}=  Strip String  ${resp}  mode=right  characters=${SPACE}00\n
 
     [Return]  ${resp}