Add a "network" command namespace.

This allows the addition of a description to show up in the help screen.

See wp-cli/wp-cli#4385

Author: schlessera

entity-command.php

@@ -14,6 +14,7 @@
 WP_CLI::add_command( 'menu', 'Menu_Command' );
 WP_CLI::add_command( 'menu item', 'Menu_Item_Command' );
 WP_CLI::add_command( 'menu location', 'Menu_Location_Command' );
+WP_CLI::add_command( 'network', 'Network_Namespace' );
 WP_CLI::add_command( 'network meta', 'Network_Meta_Command', array(
 	'before_invoke' => function () {
 		if ( !is_multisite() ) {

src/Network_Namespace.php

@@ -0,0 +1,18 @@
+<?php
+
+use WP_CLI\Dispatcher\CommandNamespace;
+
+/**
+ * Perform network-wide operations.
+ *
+ * ## EXAMPLES
+ *
+ *     # Get a list of super-admins
+ *     $ wp network meta get 1 site_admins
+ *     array (
+ *       0 => 'supervisor',
+ *     )
+ */
+class Network_Namespace extends CommandNamespace {
+
+}