user/libksane: bump to 18.04.3, fix license, modernise

user/libksane/APKBUILD

 # Contributor: A. Wilcox <awilfox@adelielinux.org>
 # Maintainer: A. Wilcox <awilfox@adelielinux.org>
 pkgname=libksane
-pkgver=18.04.1
+pkgver=18.04.3
 pkgrel=0
 pkgdesc="KDE scanning library"
 url="https://www.kde.org"
 arch="all"
-license="LGPL-2.1+"
+license="LGPL-2.1-only OR LGPL-3.0-only"
 depends=""
 depends_dev="sane-dev"
 makedepends="$depends_dev cmake extra-cmake-modules qt5-qtbase-dev ki18n-dev
-	kwallet-dev ktextwidgets-dev kwidgetsaddons-dev"
-install=""
+	ktextwidgets-dev kwallet-dev kwidgetsaddons-dev"
 subpackages="$pkgname-dev $pkgname-lang"
-source="http://download.kde.org/stable/applications/$pkgver/src/libksane-$pkgver.tar.xz"
-builddir="$srcdir/libksane-$pkgver"
+source="https://download.kde.org/stable/applications/$pkgver/src/libksane-$pkgver.tar.xz"
 
 build() {
 	cd "$builddir"
@@ -42,4 +40,4 @@ package() {
 	make DESTDIR="$pkgdir" install
 }
 
-sha512sums="5a6a18e6b892f0c5151573b7040771c43ecd7d512c33b8102857876ce37e1cbf87381a2803816bc0ba0de14424a0dded2ffcc8460df939f543df446954a87b79  libksane-18.04.1.tar.xz"
+sha512sums="1e9dcc5ab7ac5a8df0bd20db589da05f067e6611d19b796208fe8d08e92568661707a7e36a84e9bd361a57231652baba5ce23211aff41a7db69ff0aa3abe200c  libksane-18.04.3.tar.xz"