Log Message:
openexr: update to 2.2.1.

November 30, 2017 - OpenEXR v2.2.1 has been released and is available
for download.

This maintenance release addresses the reported OpenEXR security
vulnerabilities, specifically CVE-2017-9110, CVE-2017-9111,
CVE-2017-9112, CVE-2017-9113, CVE-2017-9114, CVE-2017-9115,
CVE-2017-9116.