Options: Make `$passed_default` available in remaining `default_option_{$option}` filter.

Pass `false` as the `$passed_default` value when the `default_option_{$option}` filter is applied in `update_option` as no default is ever passed.

This resolves an error in tests where the 3rd parameter is not available to `filter_default_option()`.

Fixes #38176.

Built from https://develop.svn.wordpress.org/trunk@38916


git-svn-id: http://core.svn.wordpress.org/trunk@38859 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/option.php

@@ -300,7 +300,7 @@ function update_option( $option, $value, $autoload = null ) {
 		return false;
 
 	/** This filter is documented in wp-includes/option.php */
-	if ( apply_filters( 'default_option_' . $option, false, $option ) === $old_value ) {
+	if ( apply_filters( 'default_option_' . $option, false, $option, false ) === $old_value ) {
 		// Default setting for new options is 'yes'.
 		if ( null === $autoload ) {
 			$autoload = 'yes';

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38915';
+$wp_version = '4.7-alpha-38916';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.