Multisite: Add a hook to the end of the network's Add New User form.

The `network_user_new_form` action can be used to extend the new user form.

Props ptahdunbar.
Fixes #15389.

Built from https://develop.svn.wordpress.org/trunk@36556


git-svn-id: http://core.svn.wordpress.org/trunk@36523 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/network/user-new.php

@@ -106,8 +106,17 @@ if ( isset( $add_user_errors ) && is_wp_error( $add_user_errors ) ) { ?>
 			<td colspan="2"><?php _e( 'A password reset link will be sent to the user via email.' ) ?></td>
 		</tr>
 	</table>
-	<?php wp_nonce_field( 'add-user', '_wpnonce_add-user' ); ?>
-	<?php submit_button( __('Add User'), 'primary', 'add-user' ); ?>
+	<?php
+	/**
+	 * Fires at the end of the new user form in network admin.
+	 *
+	 * @since 4.5.0
+	 */
+	do_action( 'network_user_new_form' );
+
+	wp_nonce_field( 'add-user', '_wpnonce_add-user' );
+	submit_button( __('Add User'), 'primary', 'add-user' );
+	?>
 	</form>
 </div>
 <?php

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36555';
+$wp_version = '4.5-alpha-36556';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.