Fixed expected error msg from Verify IPMI Username And Password keyword

Change-Id: I5bd7c33b1ae679054c22fa39187218b4fea1f635
Signed-off-by: Anusha Dathatri <adathatr@in.ibm.com>
diff --git a/redfish/account_service/test_ipmi_redfish_user.robot b/redfish/account_service/test_ipmi_redfish_user.robot
index 43487a1..a010ac7 100644
--- a/redfish/account_service/test_ipmi_redfish_user.robot
+++ b/redfish/account_service/test_ipmi_redfish_user.robot
@@ -58,7 +58,7 @@
     # Verify that IPMI command works with new password and fails with older password.
     Verify IPMI Username And Password  ${random_username}  ${valid_password2}
 
-    Run Keyword And Expect Error  Error: Unable to establish IPMI*
+    Run Keyword And Expect Error  *Error: Unable to establish IPMI*
     ...  Verify IPMI Username And Password  ${random_username}  ${valid_password}
 
 
@@ -115,7 +115,7 @@
     Redfish.Delete  /redfish/v1/AccountService/Accounts/${random_username}
 
     # Verify that IPMI command fails with deleted user.
-    Run Keyword And Expect Error  Error: Unable to establish IPMI*
+    Run Keyword And Expect Error  *Error: Unable to establish IPMI*
     ...  Verify IPMI Username And Password  ${random_username}  ${valid_password}