Zabbix

........S. [DEV-2221] reintroduced cmocka build warning flag -Wmissing-field-initializers

* commit 'da273469dc25ec4913e20bb48b6c9f365a73220d':
  ........S. [DEV-2221] testing replacing remaining NULLs with 0
  ........S. [DEV-2221] testing replacing NULL with 0 2
  ........S. [DEV-2221] testing replacing NULL with 0
  ........S. [DEV-2221] fixed unique cases of initialization
  ........S. [DEV-2221] fixed another batch of initialization warnings
  ........S. [DEV-2221] fixed variable initialization partly for missing-field-initializers warning
  .......... [DEV-2221] added back missing-field-initializers warning to build flags