In `Walker_Nav_Menu::start_el()`, `$class_names` is set twice before it is used.
See #27882. Built from https://develop.svn.wordpress.org/trunk@28330 git-svn-id: http://core.svn.wordpress.org/trunk@28158 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -81,8 +81,6 @@ class Walker_Nav_Menu extends Walker {
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function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
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$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
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$class_names = '';
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$classes = empty( $item->classes ) ? array() : (array) $item->classes;
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$classes[] = 'menu-item-' . $item->ID;
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