Update to 2.4.0v0

tested by jasper@ and Pavel Korovin
ok jasper@

sysutils/logstash/Makefile

@@ -1,8 +1,8 @@
-# $OpenBSD: Makefile,v 1.8 2016/07/15 11:11:41 jasper Exp $
+# $OpenBSD: Makefile,v 1.9 2016/10/03 09:37:09 giovanni Exp $
 
 COMMENT=		tool for managing events and logs
 
-V=			2.3.4
+V=			2.4.0
 DISTNAME=		logstash-$V
 PKGNAME=		logstash-${V:S/-/./}
 EPOCH=			0

sysutils/logstash/distinfo

@@ -1,2 +1,2 @@
-SHA256 (logstash-2.3.4.tar.gz) = f2KgPdw5cuM8ND6YKtoXlrGChPQ+2cAImi7+54sjlYM=
-SIZE (logstash-2.3.4.tar.gz) = 79779303
+SHA256 (logstash-2.4.0.tar.gz) = YixDXFwPQOIF/U2UEetAnMUpks9i3eTHzUbkgM2CR8w=
+SIZE (logstash-2.4.0.tar.gz) = 83882952