Merge pull request #61022 from WanLinghao/show-all-description-fix

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 show-all option description

**What this PR does / why we need it**:
The default value of kubectl show-all option has been changed from false to true, but its description didn't change accordingly. This patch fix it. 
 
**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 #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
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Kubernetes Submit Queue 2018-03-12 07:57:36 -07:00 committed by GitHub
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@ -52,7 +52,7 @@ func AddNonDeprecatedPrinterFlags(cmd *cobra.Command) {
cmd.Flags().String("template", "", "Template string or path to template file to use when -o=go-template, -o=go-template-file. The template format is golang templates [http://golang.org/pkg/text/template/#pkg-overview].")
cmd.MarkFlagFilename("template")
cmd.Flags().String("sort-by", "", "If non-empty, sort list types using this field specification. The field specification is expressed as a JSONPath expression (e.g. '{.metadata.name}'). The field in the API resource specified by this JSONPath expression must be an integer or a string.")
cmd.Flags().BoolP("show-all", "a", true, "When printing, show all resources (default hide terminated pods.)")
cmd.Flags().BoolP("show-all", "a", true, "When printing, show all resources (default show all pods including terminated one.)")
cmd.Flags().MarkDeprecated("show-all", "will be removed in an upcoming release")
}