Index: src/wp-admin/admin-header.php
===================================================================
--- src/wp-admin/admin-header.php	(revision 41550)
+++ src/wp-admin/admin-header.php	(working copy)
@@ -75,7 +75,7 @@
 $admin_body_class = preg_replace('/[^a-z0-9_-]+/i', '-', $hook_suffix);
 ?>
 <script type="text/javascript">
-addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
+addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(document).ready(func);else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>',
 	pagenow = '<?php echo $current_screen->id; ?>',
 	typenow = '<?php echo $current_screen->post_type; ?>',
@@ -141,7 +141,7 @@
  */
 do_action( 'admin_head' );
 
-if ( get_user_setting('mfold') == 'f' )
+if ( get_user_setting('mfold') === 'f' )
 	$admin_body_class .= ' folded';
 
 if ( !get_user_setting('unfold') )
@@ -262,5 +262,5 @@
  */
 do_action( 'all_admin_notices' );
 
-if ( $parent_file == 'options-general.php' )
+if ( $parent_file === 'options-general.php' )
 	require(ABSPATH . 'wp-admin/options-head.php');