Trim trailing whitespace.

git-svn-id: https://develop.svn.wordpress.org/trunk@15235 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/includes/plugin.php

@@ -844,7 +844,7 @@ function add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $func
 
 	// No parent as top level
 	$_parent_pages[$menu_slug] = false;
-	
+
 	return $hookname;
 }
 
@@ -955,7 +955,7 @@ function add_submenu_page( $parent_slug, $page_title, $menu_title, $capability,
 
 	// No parent as top level
 	$_parent_pages[$menu_slug] = $parent_slug;
-		
+
 	return $hookname;
 }
 
@@ -1173,18 +1173,18 @@ function add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $
 
 /**
  * Get the url to access a particular menu page based on the slug it was registered with.
- * 
+ *
  * If the slug hasn't been registered properly no url will be returned
- * 
+ *
  * @since 3.0
- * 
+ *
  * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu)
  * @param bool $echo Whether or not to echo the url - default is true
  * @return string the url
  */
 function menu_page_url($menu_slug, $echo = true) {
 	global $_parent_pages;
-		
+
 	if ( isset( $_parent_pages[$menu_slug] ) ) {
 		if ( $_parent_pages[$menu_slug] ) {
 			$url = admin_url($_parent_pages[$menu_slug] . '?page=' . $menu_slug);
@@ -1194,12 +1194,12 @@ function menu_page_url($menu_slug, $echo = true) {
 	} else {
 		$url = '';
 	}
-	
+
 	$url = esc_url($url);
-	
+
 	if ( $echo )
 		echo $url;
-	
+
 	return $url;
 }