diff -r 346c88efed21 -r 5e2f62d02dcd wp/wp-content/themes/twentythirteen/inc/back-compat.php
--- a/wp/wp-content/themes/twentythirteen/inc/back-compat.php	Mon Jun 08 16:11:51 2015 +0000
+++ b/wp/wp-content/themes/twentythirteen/inc/back-compat.php	Tue Jun 09 03:35:32 2015 +0200
@@ -17,8 +17,6 @@
  * Switches to the default theme.
  *
  * @since Twenty Thirteen 1.0
- *
- * @return void
  */
 function twentythirteen_switch_theme() {
 	switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
@@ -34,8 +32,6 @@
  * Twenty Thirteen on WordPress versions prior to 3.6.
  *
  * @since Twenty Thirteen 1.0
- *
- * @return void
  */
 function twentythirteen_upgrade_notice() {
 	$message = sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] );
@@ -43,11 +39,9 @@
 }
 
 /**
- * Prevent the Theme Customizer from being loaded on WordPress versions prior to 3.6.
+ * Prevent the Customizer from being loaded on WordPress versions prior to 3.6.
  *
  * @since Twenty Thirteen 1.0
- *
- * @return void
  */
 function twentythirteen_customize() {
 	wp_die( sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] ), '', array(
@@ -60,8 +54,6 @@
  * Prevent the Theme Preview from being loaded on WordPress versions prior to 3.4.
  *
  * @since Twenty Thirteen 1.0
- *
- * @return void
  */
 function twentythirteen_preview() {
 	if ( isset( $_GET['preview'] ) ) {