remove type command

The posix equivalent of the type command is "command -v", so now we use
that. Thanks to Jonathan Callen <jcallen@gentoo.org> for informing me
wrt the fix.

init.d/loopback.in

@@ -13,7 +13,7 @@ start()
 {
 	if [ "$RC_UNAME" = Linux ]; then
 		ebegin "Bringing up network interface lo"
-		if type ip > /dev/null 2>&1; then
+		if command -v ip > /dev/null 2>&1; then
 			ip addr add 127.0.0.1/8 dev lo brd + scope host
 			ip route add 127.0.0.0/8 dev lo scope host
 			ip link set lo up