ports/175197: [MAINTAINER] textproc/yaml-mode.el: adopt OptionsNG

[KIMURA Yasuhiro]

License information is added. So please commit attached patch instead
of original one.

Regards.

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Index: Makefile
===================================================================
--- Makefile	(revision 310228)
+++ Makefile	(working copy)
@@ -1,9 +1,4 @@
-# New ports collection makefile for:	yaml-mode.el
-# Date created:				07 Jun 2007
-# Whom:					KIMURA Yasuhiro <yasu at utahime.org>
-#
 # $FreeBSD$
-#
 
 PORTNAME=	yaml-mode.el
 PORTVERSION=	0.0.8
@@ -14,6 +9,8 @@
 MAINTAINER=	yasu at utahime.org
 COMMENT=	Simple major mode to edit YAML file for Emacsen
 
+LICENSE=	GPLv2
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	yoshiki
 GH_PROJECT=	yaml-mode
@@ -26,8 +23,13 @@
 
 LISPDIR=	${PREFIX}/${EMACS_VERSION_SITE_LISPDIR}
 
+OPTIONS_DEFINE=	DOCS
+OPTIONS_DEFAULT=	DOCS
+
+.include <bsd.port.options.mk>
+
 post-install:
-.if !defined(NOPORTDOCS)
+.if ${PORT_OPTIONS:MDOCS}
 	${MKDIR} ${DOCSDIR}
 .for file in Changes README
 	${INSTALL_MAN} ${WRKSRC}/${file} ${DOCSDIR}