Docs: Supplement a changelog entry in the DocBlock for the `$id` property in `WP_Network`.

See [37657] for where access was changed from public to private.
See [37870] for where the type was changed from `string` to `int`.

See #36717.

Built from https://develop.svn.wordpress.org/trunk@37919


git-svn-id: http://core.svn.wordpress.org/trunk@37860 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-network.php

@@ -27,7 +27,9 @@ class WP_Network {
 	 * Network ID.
 	 *
 	 * @since 4.4.0
-	 * @since 4.6.0 Type changed from string to int.
+	 * @since 4.6.0 Converted from public to private to explicitly enable more intuitive
+	 *              access via magic methods. As part of the access change, the type was
+	 *              also changed from `string` to `int`.
 	 * @access private
 	 * @var int
 	 */

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37918';
+$wp_version = '4.6-alpha-37919';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.