* Update moxa-etherdevice.inc.php
Would rather rely on `sysObjectID` when getting the hardware/software information as the `sysDescr` may be changed through the web interface of the device. Use numeric OID-s only.
* Update moxa-etherdevice.inc.php
Converted separate `snmp_get` calls into a single `snmp_get_multi_oid` call.
* Update moxa-etherdevice.inc.php
Unset variables at the end.
* Update moxa-etherdevice.inc.php
Unset multiple variables at once.
* Update moxa-etherdevice.inc.php