- The helping message of commands which have sub-commands is now clearer and more instructive. It will show the full command instead of `kubectl <command> --help ...`
  

- Kube-apiserver --help flag help is now printed in sections. ([#64517](https://github.com/kubernetes/kubernetes/pull/64517), [@sttts](https://github.com/sttts))

            CIFSContext result = baseContext.withCredentials(auth);

            // Add a unique identifier to help with debugging
            log.debug("Created fresh context for test isolation: {}", System.currentTimeMillis());
            return result;
        } catch (Exception e) {

* Trusty: Avoid reaching GCE custom metadata size limit ([#22818](https://github.com/kubernetes/kubernetes/pull/22818), [@andyzheng0831](https://github.com/andyzheng0831))
* Update kubectl help for 1.2 resources ([#23305](https://github.com/kubernetes/kubernetes/pull/23305), [@janetkuo](https://github.com/janetkuo))

		if err != nil && err != io.EOF {
			// If there is a disconnection before globalNetPerfMinDuration (we give a margin of error of 1 sec)
			// would mean the network is not stable. Logging here will help in debugging network issues.
			if time.Since(connectTime) < (globalNetPerfMinDuration - time.Second) {
				peersLogIf(ctx, err)
			}
		}
		if err != nil {
			break
		}
	}
}

 * article on <a href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>The main purpose of {@code ListenableFuture} is to help you chain together a graph of
 * asynchronous operations. You can chain them together manually with calls to methods like {@link
 * Futures#transform(ListenableFuture, Function, Executor) Futures.transform}, but you will often

    /** The key of the message: Rich Text */
    public static final String LABELS_facet_filetype_rtf = "{labels.facet_filetype_rtf}";

    /** The key of the message: Compiled HTML Help */
    public static final String LABELS_facet_filetype_chm = "{labels.facet_filetype_chm}";

    /** The key of the message: ZIP Archive */

				"application/vnd.google-earth.kml+xml",
				"application/vnd.google-earth.kmz",
				"application/vnd.grafeq",
				"application/vnd.gridmp",
				"application/vnd.groove-account",
				"application/vnd.groove-help",
				"application/vnd.groove-identity-message",
				"application/vnd.groove-injector",
				"application/vnd.groove-tool-message",
				"application/vnd.groove-tool-template",
				"application/vnd.groove-vcard",

- K8s.io/component-base/logs: usage of the pflag values in a normal Go flag set led to panics when printing the help message ([#114680](https://github.com/kubernetes/kubernetes/pull/114680), [@pohly](https://github.com/pohly)) [SIG Instrumentation]

### Feature

- If a bad flag is supplied to a kubectl command, only a tip to run `--help` is printed, instead of the usage menu.  Usage menu is printed upon running `kubectl command --help`. ([#82423](https://github.com/kubernetes/kubernetes/pull/82423), [@sallyom](https://github.com/sallyom))