Used Exception instead of die() in classmap CLI controller

build/controllers/ClassmapController.php

@@ -8,6 +8,7 @@
 namespace yii\build\controllers;
 
 use yii\console\Controller;
+use yii\console\Exception;
 use yii\helpers\FileHelper;
 
 /**
@@ -53,7 +54,7 @@ class ClassmapController extends Controller
 		$map = [];
 		foreach ($files as $file) {
 			if (strpos($file, $root) !== 0) {
-				die("Something wrong: $file\n");
+				throw new Exception("Something wrong: $file\n");
 			}
 			$path = str_replace('\\', '/', substr($file, strlen($root)));
 			$map[$path] = "\t'yii" . substr(str_replace('/', '\\', $path), 0, -4) . "' => YII_PATH . '$path',";