MFH: r533680

audio/taglib: update to 1.12-beta1

PR: 246025
Exp-run by: antoine
Submitted by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Approved by: jhale (timeout)
Security: CVE-2018-11439
Differential Revision: https://reviews.freebsd.org/D23260

Approved by: ports-secteam (joneum)