MFH: r454859

sysutils/py-salt: Update to 2017.7.2

Changes this release:

https://docs.saltstack.com/en/latest/topics/releases/2017.7.2.html

This update also includes

• 2 security fixes (CVE-2017-14695 and CVE-2017-14696)
• 2 additional boto dependencies to fix error msgs produced by salt

PR: 223821
PR: 222943
Submitted by: netzmacher <admin@netzmacher.net> (PR 222943)
Approved by: Christer Edwards (maintainer)
Security: https://vuxml.freebsd.org/freebsd/50127e44-7b88-4ade-8e12-5d57320823f1.html

Approved by: ports-secteam (delphij)