fix default lang in build_base

public_html/deployment/classes/build_base.class.php

@@ -12,7 +12,7 @@ class build_base implements iBuildplugin{
     protected $_sBuildDir = false;
     protected $_sOutfile = false;
 
-    protected $_sLang = "en";
+    protected $_sLang = "en-en";
     protected $_aLang = [];