elasticsearch7: Re-add Created by lines

Add back "Created by" lines unintentionally removed during
update.

sysutils/logstash7/Makefile

+# Created by: Daniel Solsona <daniel@ish.com.au>, Guido Falsi <madpilot@FreeBSD.org>
+
 PORTNAME=	logstash
 PORTVERSION=	7.14.0
 DISTVERSIONSUFFIX=	-darwin-x86_64

textproc/elasticsearch7/Makefile

+# Created by: Tom Judge <tj@FreeBSD.org>
+
 PORTNAME=	elasticsearch
 PORTVERSION=	7.14.0
 CATEGORIES=	textproc java devel

textproc/kibana7/Makefile

+# Created by: Tom Judge <tj@FreeBSD.org>
+
 PORTNAME=	kibana
 PORTVERSION=	7.14.0
 DISTVERSIONSUFFIX=	-darwin-x86_64