libtiff security update

3.9.4-21 - Fix patch for CVE-2016-5652 - Related: 1412078 3.9.4-20 - Fix CWE-476 defect found by covscan - Related: 1412078 3.9.4-19 - Add patches for CVEs: - CVE-2016-9533 CVE-2016-9534 CVE-2016-9535 - CVE-2016-9536 CVE-2016-9537 CVE-2016-9540 - CVE-2016-5652 - Resolves: 1412078...