testing/vnstat: improve abuild, unify code-style

testing/vnstat/APKBUILD

@@ -1,41 +1,34 @@
 # Contributor: Bartłomiej Piotrowski <nospam@bpiotrowski.pl>
 # Maintainer: Jakub Jirutka <jakub@jirutka.cz>
-
 pkgname=vnstat
 pkgver=1.15
 pkgrel=0
-pkgdesc='A console-based network traffic monitor'
-url='http://humdi.net/vnstat/'
-arch='all'
-license='GPL'
+pkgdesc="A console-based network traffic monitor"
+url="http://humdi.net/vnstat/"
+arch="all"
+license="GPL"
 install="$pkgname.pre-install"
-makedepends='gd-dev'
+makedepends="gd-dev"
 subpackages="$pkgname-doc"
 source="http://humdi.net/vnstat/$pkgname-$pkgver.tar.gz
-        vnstatd.initd
-        vnstatd.confd"
-
-_builddir="$srcdir"/vnstat-$pkgver
-prepare() {
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
-		esac
-	done
-}
+	vnstatd.initd
+	vnstatd.confd"
+builddir="$srcdir/vnstat-$pkgver"
 
 build() {
-	cd "$_builddir"
-	./configure --prefix=/usr \
+	cd "$builddir"
+	./configure \
+		--prefix=/usr \
 		--sysconfdir=/etc \
 		--mandir=/usr/share/man \
-		--infodir=/usr/share/info
+		--infodir=/usr/share/info \
+		|| return 1
 	make || return 1
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
+
 	make DESTDIR="$pkgdir" install || return 1
 
 	install -D -m0755 "$srcdir"/vnstatd.initd \