find `ip` via $PATH and not hardcoded path
https://bugs.gentoo.org/480636
--- a/client/scripts/linux+++ b/client/scripts/linux@@ -23,7 +23,7 @@# of the $1 in its args.
# 'ip' just looks too weird. /sbin/ip looks less weird.
-ip=/sbin/ip+ip=ipmake_resolv_conf() {
if [ x"$PEER_DNS" != x ] && [ x"$PEER_DNS" != xyes ]; then