Oh, I should mention which version I'm using:
$ aptitude show sudo Package: sudo State: installed Version: 1.7.0-1ubuntu2.2 -- Sends garbled security warnings if hostname can't be resolved https://bugs.launchpad.net/bugs/530073 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs