graphics/chafa: Fix pkg-plist

Notified by:	pkg-fallout

graphics/chafa/Makefile

 PORTNAME=	chafa
 PORTVERSION=	1.12.5
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	https://hpjansson.org/chafa/releases/ \
 		https://github.com/hpjansson/chafa/releases/download/${PORTVERSION}/