main/xfce4-session: upgrade to 4.7.3

main/xfce4-session/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=xfce4-session
-pkgver=4.7.2
-pkgrel=1
+pkgver=4.7.3
+pkgrel=0
 pkgdesc="A session manager for Xfce"
 url="http://www.xfce.org/"
 arch="x86 x86_64"
@@ -44,5 +44,5 @@ package() {
 		"$pkgdir"/usr/bin/xfce4-tips
 }
 
-md5sums="0b764544554c155cc2c417b5b63719ce  xfce4-session-4.7.2.tar.bz2
+md5sums="ae6c98b4419cc4b651a7e68c4afdf432  xfce4-session-4.7.3.tar.bz2
 bfd9132f08f4a92efbe982fb911c511c  busybox-shutdown.patch"