mail/ifile: undeprecate, adopt, and improve this port

- It is not deprecated upstream, just no longer being
  actively developed
- Chase redirection in the MASTER_SITES and WWW lines
- Adjust LICENSE (source code says GPLv2 or later)
- Optionally install accompanying documentation files

mail/ifile/Makefile

@@ -2,26 +2,29 @@ PORTNAME=	ifile
 PORTVERSION=	1.3.8
 PORTREVISION=	1
 CATEGORIES=	mail textproc
-MASTER_SITES=	http://people.csail.mit.edu/jrennie/ifile/
+MASTER_SITES=	${WWW}
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Application of machine learning to e-mail filtering
-WWW=		https://people.csail.mit.edu/jrennie/ifile/
+WWW=		http://qwone.com/~jason/ifile/
 
-LICENSE=	GPLv2
-
-DEPRECATED=	Deprecated upstream
-EXPIRATION_DATE=2025-04-30
+LICENSE=	GPLv2+
 
 USES=		gmake
 GNU_CONFIGURE=	yes
 USE_CSTD=	gnu89
 
-PLIST_FILES=	bin/ifile \
-		share/man/man1/ifile.1.gz
+PLIST_FILES=	bin/ifile share/man/man1/ifile.1.gz
+PORTDOCS=	ChangeLog NOTES README
+
+OPTIONS_DEFINE=	DOCS
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/ifile ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/ifile.1 ${STAGEDIR}${PREFIX}/share/man/man1
 
+post-install-DOCS-on:
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
+	${INSTALL_DATA} ${PORTDOCS:S,^,${WRKSRC}/,} ${STAGEDIR}${DOCSDIR}
+
 .include <bsd.port.mk>