Merge branch '2.3' into 2.4

* 2.3:
  $default can be string
  Fix wording for Process class documentation
  Option can be bool too (eg. --force)
  [Form] Update DateTime objects only if the actual value has changed
  Revert "bug #10091 [Translation] Update PluralizationRules.php (guilhermeblanco)"
  [HttpFoundation] fixed typo
  Added delta for Request comparison
  add zh_TW validator translations
  Added Bulgarian translation for security component

Author: fabpot

Helper/DialogHelper.php

@@ -31,7 +31,7 @@ class DialogHelper extends InputAwareHelper
      * @param OutputInterface $output       An Output instance
      * @param string|array    $question     The question to ask
      * @param array           $choices      List of choices to pick from
-     * @param Boolean         $default      The default answer if the user enters nothing
+     * @param Boolean|string  $default      The default answer if the user enters nothing
      * @param Boolean|integer $attempts Max number of times to ask before giving up (false by default, which means infinite)
      * @param string          $errorMessage Message which will be shown if invalid value from choice list would be picked
      * @param Boolean         $multiselect  Select more than one value separated by comma

Input/Input.php

@@ -186,8 +186,8 @@ public function getOption($name)
     /**
      * Sets an option value by name.
      *
-     * @param string $name  The option name
-     * @param string $value The option value
+     * @param string         $name  The option name
+     * @param string|boolean $value The option value
      *
      * @throws \InvalidArgumentException When option given doesn't exist
      */

Input/InputInterface.php

@@ -120,8 +120,8 @@ public function getOption($name);
     /**
      * Sets an option value by name.
      *
-     * @param string $name  The option name
-     * @param string $value The option value
+     * @param string         $name  The option name
+     * @param string|boolean $value The option value
      *
      * @throws \InvalidArgumentException When option given doesn't exist
      */