Zabbix

...G...... [ZBX-22868] fixed Zabbix agent 2 plugin Defaults when hardcoded value is provided

* commit '67c1959981580e82b53cf92bd2242d5e96c13739':
  ...G...... [ZBX-22868] changed the fix to not allow empty defaults
  ...G...... [ZBX-22868] code clean up
  .......... [ZBX-22868] added change log
  ...G...... [ZBX-22868] fixed Zabbix agent 2 plugin Defaults when hardcoded value is provided.