net/vnstat: Clean up Makefile

- Use INSTALL_TARGET=install-exec to install the binary executables
- Use GNU_CONFIGURE_MANPREFIX and INSTALL_TARGET=install-man to install the manpages
- Use USES=localbase and CONFIGURE_ARGS=--disable-extra-paths to support non-default LOCALBASE
- Add CONFIGURE_ARGS=--disable-image-output when GUI option is disabled
- Bump PORTREVISION for package change

PR:		273231

net/vnstat/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	vnstat
 PORTVERSION=	2.11
+PORTREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	https://github.com/vergoh/vnstat/releases/download/v${PORTVERSION}/ \
 		https://humdi.net/vnstat/
@@ -11,9 +12,12 @@ WWW=		https://humdi.net/vnstat/ \
 
 LICENSE=	GPLv2
 
-USES=		sqlite
+USES=		localbase sqlite
 
+CONFIGURE_ARGS=	--disable-extra-paths
 GNU_CONFIGURE=	yes
+GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
+INSTALL_TARGET=	install-exec install-man
 USE_RC_SUBR=	vnstat
 
 USERS=		vnstat
@@ -29,19 +33,11 @@ OPTIONS_DEFAULT=GUI
 OPTIONS_SUB=	yes
 GUI_DESC=	Build with graphics/gd dependency
 
+GUI_CONFIGURE_OFF=	--disable-image-output
 GUI_LIB_DEPENDS=	libgd.so:graphics/gd
 
-do-install:
-	${INSTALL_PROGRAM} ${WRKSRC}/vnstat ${STAGEDIR}${PREFIX}/bin/vnstat
+post-install:
 	${INSTALL_DATA} ${WRKSRC}/cfg/vnstat.conf ${STAGEDIR}${PREFIX}/etc/vnstat.conf.sample
-	${INSTALL_PROGRAM} ${WRKSRC}/vnstatd ${STAGEDIR}${PREFIX}/sbin/vnstatd
-	${INSTALL_MAN} ${WRKSRC}/man/vnstat.1 ${STAGEDIR}${PREFIX}/share/man/man1/vnstat.1
-	${INSTALL_MAN} ${WRKSRC}/man/vnstat.conf.5 ${STAGEDIR}${PREFIX}/share/man/man5/vnstat.conf.5
-	${INSTALL_MAN} ${WRKSRC}/man/vnstatd.8 ${STAGEDIR}${PREFIX}/share/man/man8/vnstatd.8
-
-do-install-GUI-on:
-	${INSTALL_PROGRAM} ${WRKSRC}/vnstati ${STAGEDIR}${PREFIX}/bin/vnstati
-	${INSTALL_MAN} ${WRKSRC}/man/vnstati.1 ${STAGEDIR}${PREFIX}/share/man/man1/vnstati.1
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}