Tell the `insert_user_meta` filter whether user is being updated.

`insert_user_meta` was introduced in [33708]. This changeset passes the
`$update` parameter to it.

Props tharsheblows, geminorum.
Fixes #31549.
Built from https://develop.svn.wordpress.org/trunk@34266


git-svn-id: http://core.svn.wordpress.org/trunk@34230 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/user-functions.php

@@ -1451,9 +1451,10 @@ function wp_insert_user( $userdata ) {
 	 *     @type bool     $show_admin_bar_front Whether to show the admin bar on the front end for the user.
 	 *                                          Default true.
  	 * }
- 	 * @param WP_User $user User object.
+	 * @param WP_User $user   User object.
+	 * @param bool    $update Whether the user is being updated rather than created.
  	 */
-	$meta = apply_filters( 'insert_user_meta', $meta, $user );
+	$meta = apply_filters( 'insert_user_meta', $meta, $user, $update );
 
 	// Update user meta.
 	foreach ( $meta as $key => $value ) {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34265';
+$wp_version = '4.4-alpha-34266';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.