Fix CS issue

Co-authored-by: Daniel Bachhuber <[email protected]>

Author: 2 people

src/Cache_Command.php

@@ -438,7 +438,7 @@ public function flush_group( $args, $assoc_args ) {
 	 * ---
 	 */
 	public function pluck( $args, $assoc_args ) {
-		list($key) = $args;
+		list( $key ) = $args;
 		$group     = Utils\get_flag_value( $assoc_args, 'group' );
 
 		$value = wp_cache_get( $key, $group );