FFe: Sync libvorbis 1.3.4-3 (main) from Debian testing (main)

[Oibaf]

Please sync libvorbis 1.3.4-3 (main) from Debian testing (main)

Fixes some crashes in popular games (e.g. wesnoth).

Changelog entries since current wily version 1.3.4-2:

libvorbis (1.3.4-3) unstable; urgency=low

  [ Martin Steghöfer ]
  * Fix crash on corrupt input file (invalid mode index). (Closes: #774516)
  * Take into account error codes returned from
    "vorbis_packet_blocksize" in "_initial_pcmoffset" (follow-up
    problem related to #774516). Thanks to Timothy B. Terriberry
  * Fix segmentation fault on two subsequent seeks to 0. (Closes: #782831)

  [ Petter Reinholdtsen ]
  * Add debian/gbp.conf to enforce the user of pristine-tar.

 -- Petter Reinholdtsen <email address hidden> Tue, 22 Sep 2015 14:30:24 +0200

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Oibaf (oibaf)]

Done in Xenial.