Index: src/wp-admin/nav-menus.php
===================================================================
--- src/wp-admin/nav-menus.php	(revision 31488)
+++ src/wp-admin/nav-menus.php	(working copy)
@@ -559,10 +559,11 @@
 	foreach( $messages as $message ) :
 		echo $message . "\n";
 	endforeach;
-	?>
-	<?php
+	
+	$menu_location_text = sprintf( _n( 'Your theme supports %s menu. Select which menu you would like to use.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) );
+	
 	if ( $locations_screen ) :
-		echo '<p>' . sprintf( _n( 'Your theme supports %s menu. Select which menu you would like to use.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) ) . '</p>';
+		echo '<p>' . apply_filters('nav_menu_theme_support_text',$menu_location_text , number_format_i18n( $num_locations ) ) . '</p>';
 	?>
 	<div id="menu-locations-wrap">
 		<form method="post" action="<?php echo esc_url( add_query_arg( array( 'action' => 'locations' ), admin_url( 'nav-menus.php' ) ) ); ?>">