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Merge pull request #65482 from wgliang/master.handle-args 

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix 'kubectl cp' with no arguments causes a panic

**What this PR does / why we need it**:
/kind bug

"kubectl cp" with no arguments causes a panic

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #65475

**Special notes for your reviewer**:

**Release note**:

```release-note
Fix 'kubectl cp' with no arguments causes a panic
```
pull/8/head
Kubernetes Submit Queue 2018-07-03 11:30:48 -07:00 committed by GitHub
parent 2a54f83ef1 254b02bcc6
commit 0c698a4766
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1 changed files with 3 additions and 0 deletions
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3
pkg/kubectl/cmd/cp.go
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@ -164,6 +164,9 @@ func (o *CopyOptions) Validate(cmd *cobra.Command, args []string) error {
}
func (o *CopyOptions) Run(args []string) error {
if len(args) < 2 {
return fmt.Errorf("source and destination are required")
}
srcSpec, err := extractFileSpec(args[0])
if err != nil {
return err