pandoc is linked against a non-existent libffi.so.5

[Neil Mayhew]

pandoc fails to load:

    $ pandoc --help
    pandoc: error while loading shared libraries:
      libffi.so.5: cannot open shared object file: No such file or directory
    $ ldd $(which pandoc)
    libffi.so.5 => not found

The package depends on libffi6

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: pandoc 1.8.1.1-1ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-20.34-generic 3.0.30
Uname: Linux 3.0.0-20-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
CheckboxSubmission: c48372b45788f96938ae8861f1edc626
CheckboxSystem: abf102d6ef41328208f5c1554651535a
Date: Thu May 24 22:30:47 2012
ProcEnviron:
 PATH=(custom, user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: pandoc
UpgradeStatus: Upgraded to oneiric on 2012-05-24 (1 days ago)

[era (era)]

Marking this as "Fix Released" as it is not reproducible out of the box on Ubuntu 14.04. If you can reproduce on a recent release, obviously, feel free to reopen, with a note of your repro steps.