create an snmp item with an invalid oid, for example "zomg::SerialNumber.0"

notice how the server logs the correct error message "Cannot find module (zomg)", but the item error says "snmp_parse_oid(): cannot parse OID"

Cannot find module (zomg): At line 1 in (none)
  3839:20160316:213837.953 item "host:SerialNumber.0" became not supported: snmp_parse_oid(): cannot parse OID "zomg::SerialNumber.0".

if possible, it would be great to return the real error message