Zabbix

........S. [ZBX-17450] added check for minimal amount of data with forecast/timeleft functions and polynomial fit

Merge in ZBX/zabbix from feature/ZBX-17450-6.0 to release/6.0

* commit '1f2c7484ca4942bdb523620284195e0c08c24c3c':
  ........S. [ZBX-17450] fixed compilation warning
  .D........ [ZBX-17450] added changelog entry
  ........S. [ZBX-17450] added check for minimal amount of data with forecast/timeleft functions and polynomial fit