Adapt test configurations

Adapt test configurations to the new Debian-based system.

testing/tests/ikev2/dhcp-static-mac/pretest.dat

@@ -1,12 +1,12 @@
 moon::/etc/init.d/iptables start 2> /dev/null
 carol::/etc/init.d/iptables start 2> /dev/null
 dave::/etc/init.d/iptables start 2> /dev/null
-venus::cat /etc/dhcpd.conf
-venus::/etc/init.d/dhcpd start 2> /dev/null
+venus::cat /etc/dhcp/dhcpd.conf
+venus::/etc/init.d/isc-dhcp-server start 2> /dev/null
 carol::ipsec start
 dave::ipsec start
 moon::ipsec start
-carol::sleep 2 
+carol::sleep 2
 carol::ipsec up home
 dave::ipsec up home
 carol::sleep 1