Check in the vendor directory

Travis seems to be having issues pulling deps, so we'll have to check in
the vendor directory and prevent the makefile from trying to regenerate
it normally.

vendor/k8s.io/client-go/tools/clientcmd/flag.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2017 The Kubernetes 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 clientcmd
+
+// transformingStringValue implements pflag.Value to store string values,
+// allowing transforming them while being set
+type transformingStringValue struct {
+	target      *string
+	transformer func(string) (string, error)
+}
+
+func newTransformingStringValue(val string, target *string, transformer func(string) (string, error)) *transformingStringValue {
+	*target = val
+	return &transformingStringValue{
+		target:      target,
+		transformer: transformer,
+	}
+}
+
+func (t *transformingStringValue) Set(val string) error {
+	val, err := t.transformer(val)
+	if err != nil {
+		return err
+	}
+	*t.target = val
+	return nil
+}
+
+func (t *transformingStringValue) Type() string {
+	return "string"
+}
+
+func (t *transformingStringValue) String() string {
+	return string(*t.target)
+}