Index: wp-content/themes/twentythirteen/functions.php
===================================================================
--- wp-content/themes/twentythirteen/functions.php	(revision 49081)
+++ wp-content/themes/twentythirteen/functions.php	(working copy)
@@ -515,7 +515,7 @@
 	 *
 	 * @since Twenty Thirteen 1.0
 	 *
-	 * @param boolean $echo (optional) Whether to echo the date. Default true.
+	 * @param bool $echo (optional) Whether to echo the date. Default true.
 	 * @return string The HTML-formatted post date.
 	 */
 	function twentythirteen_entry_date( $echo = true ) {
Index: wp-includes/class-requests.php
===================================================================
--- wp-includes/class-requests.php	(revision 49081)
+++ wp-includes/class-requests.php	(working copy)
@@ -498,7 +498,7 @@
 	 * Get the default options
 	 *
 	 * @see Requests::request() for values returned by this method
-	 * @param boolean $multirequest Is this a multirequest?
+	 * @param bool $multirequest Is this a multirequest?
 	 * @return array Default option values
 	 */
 	protected static function get_default_options($multirequest = false) {
Index: wp-includes/class-wp-simplepie-file.php
===================================================================
--- wp-includes/class-wp-simplepie-file.php	(revision 49081)
+++ wp-includes/class-wp-simplepie-file.php	(working copy)
@@ -29,7 +29,7 @@
 	 * @param string|array $headers         Optional. Array or string of headers to send with the request.
 	 *                                      Default null.
 	 * @param string       $useragent       Optional. User-agent value sent. Default null.
-	 * @param boolean      $force_fsockopen Optional. Whether to force opening internet or unix domain socket
+	 * @param bool      $force_fsockopen Optional. Whether to force opening internet or unix domain socket
 	 *                                      connection or not. Default false.
 	 */
 	public function __construct( $url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false ) {
Index: wp-includes/Requests/Response.php
===================================================================
--- wp-includes/Requests/Response.php	(revision 49081)
+++ wp-includes/Requests/Response.php	(working copy)
@@ -105,7 +105,7 @@
 	 *
 	 * @throws Requests_Exception If `$allow_redirects` is false, and code is 3xx (`response.no_redirects`)
 	 * @throws Requests_Exception_HTTP On non-successful status code. Exception class corresponds to code (e.g. {@see Requests_Exception_HTTP_404})
-	 * @param boolean $allow_redirects Set to false to throw on a 3xx as well
+	 * @param bool $allow_redirects Set to false to throw on a 3xx as well
 	 */
 	public function throw_for_status($allow_redirects = true) {
 		if ($this->is_redirect()) {