docs: def update_vpnservice(vpnservice, desc, profile=None):
      '''
      Updates a VPN service
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' neutron.update_vpnservice vpnservice-name desc='VPN Service1'
  
      :param vpnservice: ID or name of vpn service to update
      :param desc: Set a description for the VPN service
      :param profile: Profile to build on (Optional)
      :return: Value of updated VPN service information
      '''
      conn = _auth(profile)
      return conn.update_vpnservice(vpnservice, desc)