Checkmk Werk 13165: check_dns: Act case-insensitive

ID: 13165 Title: check_dns: Act case-insensitive Component: Checks & agents Level: 1 Class: Bug fix Version: 2.1.0i1 When comparing the answer from DNS, check_dns always acts case-sensitive. That means, it marks answers as CRITICAL, when for instance the hostname in check-mk is lowercase and the answer comes as uppercase. This has been fixed.