Applied fixes from StyleCI

Author: stevebauman

src/Middleware/WindowsAuthenticate.php

@@ -56,7 +56,7 @@ public function handle(Request $request, Closure $next)
                 $username = explode('\\', $account);
 
                 if (count($username) === 2) {
-                    list ($domain, $username) = $username;
+                    list($domain, $username) = $username;
                 } else {
                     $username = $username[key($username)];
                 }

src/Traits/ImportsUsers.php

@@ -163,7 +163,7 @@ protected function isAttributeCallback($string)
     protected function handleAttributeCallback(User $user, $callback)
     {
         // Explode the callback into its class and method.
-        list ($class, $method) = explode('@', $callback);
+        list($class, $method) = explode('@', $callback);
 
         // Create the handler.
         $handler = app($class);