multimedia/ppm2fli: Mark DEPRECATED

- BROKEN on all supported versions after the EOL of 12
- Add LICENSE GPLv2
- Set EXPIRATION_DATE 2023-12-31

multimedia/ppm2fli/Makefile

@@ -1,15 +1,21 @@
 PORTNAME=	ppm2fli
 PORTVERSION=	2.1
+PORTREVISION=	1
 CATEGORIES=	multimedia graphics
 MASTER_SITES=	http://vento.pi.tu-berlin.de/ppm2fli/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Utilities to merge PPM files into animated FLI and backwards
 WWW=		http://vento.pi.tu-berlin.de/ppm2fli/main.html
 
+DEPRECATED=	BROKEN on all supported versions after the EOL of 12
+EXPIRATION_DATE=	2023-12-31
 BROKEN_FreeBSD_13=	ld: error: duplicate symbol: Xorigin
 BROKEN_FreeBSD_14=	ld: error: duplicate symbol: Xorigin
 
+LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 pre-patch:
 	@${REINPLACE_CMD} -e 's|^C|#C|g ; \
 		 s|gcc |\$${CC} |g' ${WRKSRC}/Makefile