Merge pull request #3745 from D-Albers/libpng
authorJo-Philipp Wich <jo@mein.io>
Tue, 3 Jan 2017 19:22:17 +0000 (20:22 +0100)
committerGitHub <noreply@github.com>
Tue, 3 Jan 2017 19:22:17 +0000 (20:22 +0100)
libpng: Update to version 1.2.57 fixes CVE-2016-10087


Trivial merge