[Pkg-gmagick-im-team] Bug#860734: CVE-2017-7941 memory leak in sgi

[Bastien ROUCARIES]

Package: src:imagemagick
Version: 8:6.6.0.4-3
Severity: serious
Tags: security
X-Debbugs-CC: team at security.debian.org
control: found -1 8:6.7.7.10-5
control: found -1 8:6.8.9.9-5
forwarded: https://github.com/ImageMagick/ImageMagick/issues/428

Fixed by
https://github.com/ImageMagick/ImageMagick/commit/721dc1305b2bfff92e5ca605dc1a47c61ce90b9f