Fix test tagging name

Change-Id: I5f59267332a76dc8fccbe4ce81a46736972ae9b1
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/security/test_bmc_connections.robot b/security/test_bmc_connections.robot
index 4534aa7..d785d8d 100644
--- a/security/test_bmc_connections.robot
+++ b/security/test_bmc_connections.robot
@@ -23,7 +23,7 @@
 
 Test Patch Without Auth Token Fails
     [Documentation]  Send patch method without auth token and verify it throws an error.
-    [Tags]   Test Patch Without Auth Token Fails
+    [Tags]   Test_Patch_Without_Auth_Token_Fails
 
     Redfish.Patch  ${REDFISH_NW_PROTOCOL_URI}  body={'HostName': '${hostname}'}
     ...  valid_status_codes=[${HTTP_UNAUTHORIZED}, ${HTTP_FORBIDDEN}]