Fix #4055. Sort inside namespaces in list command. (#4057)

* Sort inside namespaces in list command.

* fix spaces.

* indentation.

Author: weitzman

src/Commands/help/ListCommands.php

@@ -214,6 +214,11 @@ public static function categorize($all, $separator = ':')
         }
 
         ksort($namespaced);
+
+        // Sort inside namespaces.
+        foreach ($namespaced as $key => &$items) {
+            ksort($items);
+        }
         return $namespaced;
     }
 }