vpnc-scripts: add upstream patch for ipv6.

srcpkgs/vpnc-scripts/patches/fix-ipv6.patch

@@ -0,0 +1,16 @@
+--- vpnc-script	2018-02-26 15:22:35.000000000 +0000
++++ vpnc-script	2018-08-06 12:02:25.418113014 +0100
+@@ -881,10 +881,10 @@ do_connect() {
+ 		while [ $i -lt $CISCO_IPV6_SPLIT_INC ] ; do
+ 			eval NETWORK="\${CISCO_IPV6_SPLIT_INC_${i}_ADDR}"
+ 			eval NETMASKLEN="\${CISCO_IPV6_SPLIT_INC_${i}_MASKLEN}"
+-			if [ $NETMASKLEN -lt 128 ]; then
+-				set_ipv6_network_route "$NETWORK" "$NETMASKLEN" "$TUNDEV"
+-			else
++			if [ $NETMASKLEN -eq 0 ]; then
+ 				set_ipv6_default_route
++			else
++				set_ipv6_network_route "$NETWORK" "$NETMASKLEN" "$TUNDEV"
+ 			fi
+ 			i=`expr $i + 1`
+ 		done

srcpkgs/vpnc-scripts/template

@@ -1,11 +1,11 @@
 # Template file for 'vpnc-scripts'
 pkgname=vpnc-scripts
 version=20180227
-revision=1
+revision=2
 noarch=yes
 short_desc="Network configuration scripts for VPNC and OpenConnect"
 maintainer="Eivind Uggedal <eivind@uggedal.com>"
-license="GPL-2"
+license="GPL-2.0-or-later"
 homepage="http://www.infradead.org/openconnect/vpnc-script.html"
 distfiles="ftp://ftp.infradead.org/pub/${pkgname}/${pkgname}-${version}.tar.gz"
 checksum=d084939fb12fdf570344bbb89f3f6a961d1916e95b42f6381aee050c3f1dd39e