fixed next year calculation for dns domain

bin/v_add_dns_domain

@@ -19,7 +19,7 @@ domain=$(idn -t --quiet -u "$2" )
 domain_idn=$(idn -t --quiet -a "$domain")
 ip=$3
 template=${4-default}
-next_year=$(date +F -d "+ 1 year")
+next_year=$(date +%F -d "+ 1 year")
 exp=${5-$next_year}
 soa=$6
 ttl=${7-14400}