vendor: remove dep and use vndr

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

vendor/k8s.io/apimachinery/pkg/util/mergepatch/errors.go

@@ -0,0 +1,66 @@
+/*
+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 mergepatch
+
+import (
+	"errors"
+	"fmt"
+)
+
+var ErrBadJSONDoc = errors.New("Invalid JSON document")
+var ErrNoListOfLists = errors.New("Lists of lists are not supported")
+var ErrBadPatchFormatForPrimitiveList = errors.New("Invalid patch format of primitive list")
+
+// IsPreconditionFailed returns true if the provided error indicates
+// a precondition failed.
+func IsPreconditionFailed(err error) bool {
+	_, ok := err.(ErrPreconditionFailed)
+	return ok
+}
+
+type ErrPreconditionFailed struct {
+	message string
+}
+
+func NewErrPreconditionFailed(target map[string]interface{}) ErrPreconditionFailed {
+	s := fmt.Sprintf("precondition failed for: %v", target)
+	return ErrPreconditionFailed{s}
+}
+
+func (err ErrPreconditionFailed) Error() string {
+	return err.message
+}
+
+type ErrConflict struct {
+	message string
+}
+
+func NewErrConflict(patch, current string) ErrConflict {
+	s := fmt.Sprintf("patch:\n%s\nconflicts with changes made from original to current:\n%s\n", patch, current)
+	return ErrConflict{s}
+}
+
+func (err ErrConflict) Error() string {
+	return err.message
+}
+
+// IsConflict returns true if the provided error indicates
+// a conflict between the patch and the current configuration.
+func IsConflict(err error) bool {
+	_, ok := err.(ErrConflict)
+	return ok
+}