fix

Author: rwifeng

tests/Qiniu/Tests/BucketTest.php

@@ -121,15 +121,15 @@ public function testFetch()
             $this->bucketName,
             'fetch.html'
         );
-	$this->assertArrayHasKey('hash', $ret);
+        $this->assertArrayHasKey('hash', $ret);
         $this->assertNull($error);
-	
+
         list($ret, $error) = $this->bucketManager->fetch(
             'http://developer.qiniu.com/docs/v6/sdk/php-sdk.html',
             $this->bucketName,
             ''
         );
-	$this->assertArrayHasKey('key', $ret);
+        $this->assertArrayHasKey('key', $ret);
         $this->assertNull($error);
     }