community/nbd: upgrade to 3.17, clarify license

community/nbd/APKBUILD

 # Contributor: Sören Tempel <soeren+alpine@soeren-tempel.net>
 # Maintainer: Carlo Landmeter <clandmeter@gmail.com>
 pkgname=nbd
-pkgver=3.16.1
+pkgver=3.17
 pkgrel=0
 pkgdesc="Tools for network block devices"
 url="http://nbd.sourceforge.net"
 arch="all"
-license="GPL-2.0"
+license="GPL-2.0-or-later"
 makedepends="glib-dev linux-headers zlib-dev"
 subpackages="$pkgname-doc $pkgname-client"
 source="http://downloads.sourceforge.net/$pkgname/$pkgname-$pkgver.tar.xz"
@@ -41,4 +41,4 @@ client() {
 		"$subpkgdir"/usr/sbin/
 }
 
-sha512sums="0e8444333e0a41a725c08867b79634bca1b8e9c0e88011dcf8e2f37b6e8de5582208c5029eea16bee517530c8725f232c1c963848bd09da5c4dda6a15ee283de  nbd-3.16.1.tar.xz"
+sha512sums="bcbd025d829d407dc3c0b837cbc1c16f673c5f4c0483d5bee83a52b40d528088499860c775e4e77cf47a8ac1d83dcda24df1092d658dd915ed01c638b3ebc57b  nbd-3.17.tar.xz"