dns/powerdns: update 3.4.0 -> 3.4.1

PR:		194805
Submitted by:	Ralf van der Enden <tremere@cainites.net>
Approved by:	mentors (implicit)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@372614 35697150-7ecd-e111-bb59-0022644237b5