Zabbix

..F....... [ZBX-21961] removed unnecessary "Command:" label for message actions in Event details page

* commit '5351663cf2457a83201963736d74d3223d58b12c':
  ..F....... [ZBX-21961] minor code refactoring and fixed changelog message
  .D........ [ZBX-21961] added ChangeLog file
  ..F....... [ZBX-21961] fixed message/command label in Actions block in Event details