Fix nodeeventlog with 'None' entries
Fix nodeeventlog with 'None' entries

Some entries have 'None' fields.  Gracefully tolerate
this scenario.

jjohnson42/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,whowutwut/confluent,whowutwut/confluent,whowutwut/confluent,xcat2/confluent,jjohnson42/confluent,xcat2/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,whowutwut/confluent