MFH: r386626
devel/ruby-gems: update to 2.4.7
PR: 200264
Differential Revision: https://reviews.freebsd.org/D2572
Submitted by: Santiago Pastorino <spastorino@gmail.com>
Approved by: mat (mentor)
Security: CVE-2015-3900
Approved by: ports-secteam (delphij)