Graylog2/graylog2-server — pull request #71 by cbrunnkvist (2012-02-02 09:39:49+00:00)
Title: Fix a false negative corner case (->network provider of your build host ...

...providing both default DNS search domain which in turn has wildcard record)

You can argue that this will only happen because of bad network configuration practice - but sometimes that is outside of your control. A single dot after the hostname signifying the root domain should be sufficient.