Use PKG_SYSCONF* variables correctly in net/knot.

Set PKG_SYSCONFSUBDIR to "knot" to have all of the config files
located in the "knot" subdirectory of ${PKG_SYSCONFBASE}.

Pass ${PKG_SYSCONFBASE} to the configure script since the package's
build infrastructure automatically appends "/knot" to the value
passed in through --sysconfdir.

Remove ${PKG_SYSCONFDIR} from INSTALLATION_DIRS since it is
automatically created by the package install script.

Bump the PKGREVISION due to changes in the package install scripts.

net/knot/Makefile

@@ -1,6 +1,7 @@
-# $NetBSD: Makefile,v 1.34 2016/12/09 22:28:17 pettai Exp $
+# $NetBSD: Makefile,v 1.35 2017/08/07 08:44:14 jlam Exp $
 
 DISTNAME=	knot-2.3.3
+PKGREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	https://secure.nic.cz/files/knot-dns/
 EXTRACT_SUFX=	.tar.xz
@@ -14,7 +15,7 @@ BUILD_DEFS+=	VARBASE
 
 GNU_CONFIGURE=		yes
 CONFIGURE_ARGS+=	--prefix=${PREFIX:Q}
-CONFIGURE_ARGS+=	--sysconfdir=${PKG_SYSCONFDIR}
+CONFIGURE_ARGS+=	--sysconfdir=${PKG_SYSCONFBASE}
 CONFIGURE_ARGS+=	--localstatedir=${VARBASE}/knot
 CONFIGURE_ARGS+=	--with-rundir=${VARBASE}/run/knot
 CONFIGURE_ARGS+=	--with-storage=${VARBASE}/knot/lib
@@ -33,7 +34,7 @@ PKGCONFIG_OVERRIDE+=	src/zscanner/libzscanner.pc.in
 RCD_SCRIPTS=	knot
 
 EGDIR=			${PREFIX}/share/examples/knot
-KNOT_SYSCONFDIR=	${PKG_SYSCONFDIR}/knot
+PKG_SYSCONFSUBDIR=	knot
 
 SUBST_CLASSES+=		paths
 SUBST_FILES.paths=	${WRKSRC}/samples/Makefile.in
@@ -41,11 +42,11 @@ SUBST_STAGE.paths=	post-patch
 SUBST_SED.paths=	-e 's,@EGDIR@,${EGDIR},'
 
 CONF_FILES=	${EGDIR}/knot.sample.conf \
-			${KNOT_SYSCONFDIR}/knot.sample.conf
+			${PKG_SYSCONFDIR}/knot.conf
 CONF_FILES+=	${EGDIR}/example.com.zone \
-			${KNOT_SYSCONFDIR}/example.com.zone
+			${PKG_SYSCONFDIR}/example.com.zone
 
-INSTALLATION_DIRS=	${EGDIR} ${KNOT_SYSCONFDIR}
+INSTALLATION_DIRS=	${EGDIR}
 OWN_DIRS+=		${VARBASE}/knot
 
 .include "../../devel/userspace-rcu/buildlink3.mk"