Check_MK Werk 5471: Handle malformed SEND_CUSTOM_{HOST, SERVICE}_NOTIFICATION commands more gracefully.

ID: 5471 Title: Handle malformed SEND_CUSTOM_{HOST,SERVICE}_NOTIFICATION commands more gracefully. Component: cmc Level: 1 Class: Bug fix Version: 1.5.0i2 The Check_MK Micro Core could segfault when it encountered a malformed SEND_CUSTOM_HOST_NOTIFICATION / SEND_CUSTOM_SERVICE_NOTIFICATION command, this has been fixed.