diff --git a/vendor/github.com/coreos/etcd/pkg/flags/urls.go b/vendor/github.com/coreos/etcd/pkg/flags/urls.go
new file mode 100644
index 0000000..6383d7e
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/pkg/flags/urls.go
@@ -0,0 +1,52 @@
+// Copyright 2015 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package flags
+
+import (
+	"strings"
+
+	"github.com/coreos/etcd/pkg/types"
+)
+
+type URLsValue types.URLs
+
+// Set parses a command line set of URLs formatted like:
+// http://127.0.0.1:2380,http://10.1.1.2:80
+func (us *URLsValue) Set(s string) error {
+	strs := strings.Split(s, ",")
+	nus, err := types.NewURLs(strs)
+	if err != nil {
+		return err
+	}
+
+	*us = URLsValue(nus)
+	return nil
+}
+
+func (us *URLsValue) String() string {
+	all := make([]string, len(*us))
+	for i, u := range *us {
+		all[i] = u.String()
+	}
+	return strings.Join(all, ",")
+}
+
+func NewURLsValue(init string) *URLsValue {
+	v := &URLsValue{}
+	if err := v.Set(init); err != nil {
+		plog.Panicf("new URLsValue should never fail: %v", err)
+	}
+	return v
+}