One newline is enough.

git-svn-id: https://develop.svn.wordpress.org/trunk@19684 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/user.php

@@ -65,7 +65,6 @@ function wp_signon( $credentials = '', $secure_cookie = '' ) {
 	return $user;
 }
 
-
 /**
  * Authenticate the user using the username and password.
  */
@@ -359,7 +358,6 @@ class WP_User_Query {
 	var $query_orderby;
 	var $query_limit;
 
-
 	/**
 	 * PHP5 constructor
 	 *
@@ -1460,7 +1458,6 @@ function wp_create_user($username, $password, $email = '') {
 	return wp_insert_user($userdata);
 }
 
-
 /**
  * Return a list of meta keys that wp_insert_user() is supposed to set.
  *