am 538a75a3: am e96107d2: am 31f04ea9: (-s ours) Merge "Backport of fix for CVE-2015-0973 to libpng 1.2." into klp-dev

* commit '538a75a36cb1eb6044b2f7ea21bbd0cc3d1b1aa1':
  Backport of fix for CVE-2015-0973 to libpng 1.2.