textproc/reflex: Update to 20210510

Changes:	https://invisible-mirror.net/reflex/NEWS.html

textproc/reflex/Makefile

 # Created by: bf@FreeBSD.org
 
 PORTNAME=	reflex
-PORTVERSION=	20200715
+PORTVERSION=	20210510
 CATEGORIES=	textproc
 MASTER_SITES=	https://invisible-mirror.net/archives/reflex/ \
 		LOCAL/sunpoet

textproc/reflex/distinfo

-TIMESTAMP = 1595416539
-SHA256 (reflex-20200715.tgz) = 8845a36ac429e2e9bc01576a13fdafd33d69c769aae7f285907760f1d4ec58fb
-SIZE (reflex-20200715.tgz) = 467633
+TIMESTAMP = 1620928571
+SHA256 (reflex-20210510.tgz) = 96f1b1740489d52dcbbd51a78dbe68360bdcdafc380ed302ec503bcc5eb6b36b
+SIZE (reflex-20210510.tgz) = 471218