MFH: r414237

Security fix and upgrade to 2.3.2

PR: 209129
Submitted by: enrico.m.crisostomo@gmail.com (maintainer)
ChangeLog: https://www.elastic.co/blog/logstash-2.3.1-and-2.2.4-released
Security: f2d4f879-0d7c-11e6-925f-6805ca0b3d42

Approved by: ports-secteam (feld)