Docs: Fix indentation in `add_filter()` example.

See #32246.
Built from https://develop.svn.wordpress.org/trunk@36392


git-svn-id: http://core.svn.wordpress.org/trunk@36359 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/plugin.php

@@ -50,7 +50,7 @@ if ( ! isset( $wp_current_filter ) )
  *
  *     function example_callback( $example ) {
  *         // Maybe modify $example in some way.
- *     	   return $example;
+ *         return $example;
  *     }
  *     add_filter( 'example_filter', 'example_callback' );
  *

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36391';
+$wp_version = '4.5-alpha-36392';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.