Bug#818547: RFH: vpnc -- Cisco-compatible VPN client

[Florian Schlichting]

Control: retitle 818547 RFA: vpnc -- Cisco-compatible VPN client

I request vpnc to be adopted. I no longer have access to a VPN server
where I could test the binary built by this package, and while not much
is happening upstream and it is very low maintenance, I don't feel
comfortable to rely on users to ensure even basic functionality.