Update code to adhere to coding guideline

Change-Id: I859340a2f17e19b7b5cbb24807499db7ad455f74
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/tests_ldap/test_user_ldap_management.robot b/tests_ldap/test_user_ldap_management.robot
index 1d5cca8..e601d1e 100644
--- a/tests_ldap/test_user_ldap_management.robot
+++ b/tests_ldap/test_user_ldap_management.robot
@@ -173,7 +173,7 @@
 Configure LDAP Server On BMC
     [Documentation]  Configure LDAP Server On BMC.
 
-    ${LDAP_SECURE_MODE} =   Convert To Boolean    ${LDAP_SECURE_MODE}
+    ${LDAP_SECURE_MODE}=  Convert To Boolean  ${LDAP_SECURE_MODE}
 
     @{ldap_parm_list}=  Create List
     ...  ${LDAP_SERVER_URI}  ${LDAP_BIND_DN}