Fix naming and comments in kube-proxy.

pkg/util/iptables/iptables.go

@@ -326,6 +326,11 @@ func (runner *runner) SaveInto(table Table, buffer *bytes.Buffer) error {
 	args := []string{"-t", string(table)}
 	glog.V(4).Infof("running iptables-save %v", args)
 	cmd := runner.exec.Command(cmdIPTablesSave, args...)
+	// Since CombinedOutput() doesn't support redirecting it to a buffer,
+	// we need to workaround it by redirecting stdout and stderr to buffer
+	// and explicitly calling Run() [CombinedOutput() underneath itself
+	// creates a new buffer, redirects stdout and stderr to it and also
+	// calls Run()].
 	cmd.SetStdout(buffer)
 	cmd.SetStderr(buffer)
 	return cmd.Run()