Update code documentation and variables

Change-Id: I40a3dcfcca6be63b6ea44f935bb631948273dd82
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/systest/test_bmc_poll_errors.robot b/systest/test_bmc_poll_errors.robot
index fca158f..7105718 100755
--- a/systest/test_bmc_poll_errors.robot
+++ b/systest/test_bmc_poll_errors.robot
@@ -19,7 +19,7 @@
 ${POLL_INTERVAL}  10 second
 
 # Error log Severities to ignore when checking Error Logs.
-@{ESEL_WHITELIST}
+@{ESEL_IGNORE_LIST}
 ...  xyz.openbmc_project.Logging.Entry.Level.Informational
 
 
@@ -42,7 +42,7 @@
 
     Redfish.Get  /redfish/v1/Chassis/chassis/Sensors
 
-    Check For Error Logs  ${ESEL_WHITELIST}
+    Check For Error Logs  ${ESEL_IGNORE_LIST}
 
 
 Suite Setup Execution