[Pkg-gmagick-im-team] Bug#722272: Please no longer suggest ffmpeg

[Moritz Muehlenhoff]

Package: imagemagick
Version: 8:6.7.7.10-6
Severity: normal
User: pkg-multimedia-maintainers at lists.alioth.debian.org
Usertags: ffmpeg-removal

libav no longer builds a binary package ffmpeg. ffmpeg is currently
used for MPEGDecodeDelegate; you could switch it over to avconv
from the libav-tools package.

Cheers,
        Moritz