gdm: fix udev-rule with eudev, default enable wayland

srcpkgs/gdm/template

@@ -1,7 +1,7 @@
 # Template file for 'gdm'
 pkgname=gdm
 version=3.28.0
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="$(vopt_enable gir introspection)
  --disable-schemas-compile --disable-static --with-default-pam-config=arch
@@ -53,8 +53,8 @@ post_install() {
 
 	sed -i "s/pam_systemd\.so/pam_elogind.so/" $DESTDIR/etc/pam.d/*
 
-	# Disable Wayland by default.
-	sed -i "s/#WaylandEnable=.*/WaylandEnable=false/" $DESTDIR/etc/gdm/custom.conf
+	# fix with eudev
+	sed -i 's/\\"//g; s/\[/\\[/; s/\\n/\\\\n/' $DESTDIR/usr/lib/udev/rules.d/61-gdm.rules
 
 	# runit service
 	vsv gdm