Our dhclient-script fails to update /etc/resolv.conf if no new

domain name is given and /etc/resolv.conf doesn't exist. Fix this
by using -f (force).

Assigned to ISC as ISC-Bugs #11570

PR:		bin/67613
Submitted by:	Nikos Ntarmos <ntarmos@ceid.upatras.gr>

contrib/isc-dhcp/client/scripts/freebsd

@@ -16,7 +16,7 @@ make_resolv_conf() {
       ( echo search $new_domain_name >/etc/resolv.conf )
       exit_status=$?
     else
-      ( rm /etc/resolv.conf )
+      ( rm -f /etc/resolv.conf )
       exit_status=$?
     fi
     if [ $exit_status -ne 0 ]; then