redirectUnless code in 'Writing slimmer Controllers' is incorrect

[Deleted user]

function redirectUnless code has a little bug in it on page
http://josediazgonzalez.com/2013/12/24/writing-slimmer-controllers/

Here is the function as documented

<?php
public function redirectUnless($variable, $redirectTo = null) {
  if (empty($variable)) {    # <--- wrong
    return;
  }

  if (empty($redirectTo)) {
    $redirectTo = array('action' => 'index');
  }

  return $this->redirect($redirectTo);
}
?>

Line 2 should be

<?php
public function redirectUnless($variable, $redirectTo = null) {
  if (!empty($variable)) {    # if NOT empty
    return;
  }

  // ...
}
?>

[josegonzalez]

Fixed!