The file was already readable by the group, but our RPM specs did
not set the group to 'dnsdist'.
%make_install
install -d %{buildroot}/%{_sysconfdir}/dnsdist
%{__mv} %{buildroot}%{_sysconfdir}/dnsdist/dnsdist.conf-dist %{buildroot}%{_sysconfdir}/dnsdist/dnsdist.conf
+chgrp dnsdist %{buildroot}/%{_sysconfdir}/dnsdist/dnsdist.conf
chmod 0640 %{buildroot}/%{_sysconfdir}/dnsdist/dnsdist.conf
sed -i "s,/^\(ExecStart.*\)dnsdist\(.*\)\$,\1dnsdist -u dnsdist -g dnsdist\2," %{buildroot}/%{_unitdir}/dnsdist.service
sed -i "s,/^\(ExecStart.*\)dnsdist\(.*\)\$,\1dnsdist -u dnsdist -g dnsdist\2," %{buildroot}/%{_unitdir}/dnsdist@.service