Update code to adhere to coding guideline

Change-Id: I859340a2f17e19b7b5cbb24807499db7ad455f74
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/xcat/xcat_utils.robot b/lib/xcat/xcat_utils.robot
index 9d2e61d..7eaadfa 100644
--- a/lib/xcat/xcat_utils.robot
+++ b/lib/xcat/xcat_utils.robot
@@ -51,7 +51,7 @@
     OperatingSystem.File Should Exist  ${node_cfg_file_path}  msg=cfg file missing.
     File Should Not Be Empty  ${node_cfg_file_path}  msg=Empty config file.
 
-    ${bmc_list} =  OperatingSystem.Get File  ${node_cfg_file_path}
+    ${bmc_list}=  OperatingSystem.Get File  ${node_cfg_file_path}
     [Return]  ${bmc_list}
 
 Add Nodes To XCAT