up flag handling in component-base/logs: that package no longer adds flags to the global flag sets. Commands which want the klog and `--log-flush-frequency` flags must explicitly call `logs.AddFlags`; the new `cli.Run` does that for commands. That helper function also covers flag normalization and printing of usage and errors in a consistent way (print usage text first if parsing failed, then the error). ([#105076](https://github.com/kubernetes/kubernetes/pull/105076), [@pohly](https://github.com/pohly))...

				} else if !strings.HasPrefix(err.Error(), tc.error) {
					t.Errorf("got wrong error: %v (expected %q)", err, tc.error)
				}
			}
		})
	}
}

// orderByCommentServiceName is a helper function that orders two IPTables rules
// based on the service name in their comment. (If either rule has no comment then the
// return value is undefined.)
func orderByCommentServiceName(rule1, rule2 *iptablestest.Rule) bool {

	// garbage collector only sees initialized values when it
	// looks for pointers.
	var lo, hi int64

	// Opaque state for backend to use. Current backends use it to
	// keep track of which helper registers have been zeroed.
	var state uint32

	// Iterate through declarations. Autos are sorted in decreasing
	// frame offset order.
	for _, n := range e.curfn.Dcl {
		if !n.Needzero() {
			continue

* Fix charms leaving services running after remove-unit ([#48446](https://github.com/kubernetes/kubernetes/pull/48446), [@Cynerva](https://github.com/Cynerva))
* Added helper funcs to schedulercache.Resource. ([#46926](https://github.com/kubernetes/kubernetes/pull/46926), [@k82cn](https://github.com/k82cn))