sysutils/ansible: address CVE-2016-9587

Reviewed by: matthew
Approved by: matthew (mentor)
MFH: 2017Q1
Security: CVE-2016-9587
Security: https://vuxml.FreeBSD.org/freebsd/a93c3287-d8fd-11e6-be5c-001fbc0f280f.html
Differential Revision: https://reviews.freebsd.org/D9158