Polished file error messages for the Files app

chrome/browser/resources/file_manager/js/file_manager.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
  * dialogs, as well as the full screen file manager application (though the
  * latter is not yet implemented).
@@ skipping 184 matching lines @@
    */
   function getFileErrorString(code) {
     for (var key in FileError) {
       var match = /(.*)_ERR$/.exec(key);
       if (match && FileError[key] == code) {
         // This would convert 1 to 'NOT_FOUND'.
         code = match[1];
         break;
       }
     }
+    console.warn('File error: ' + code);
     return loadTimeData.getString('FILE_ERROR_' + code) ||
-        loadTimeData.getStringF('FILE_ERROR_GENERIC', code);
+        loadTimeData.getString('FILE_ERROR_GENERIC');
   }
 
   function removeChildren(element) {
     element.textContent = '';
   }
 
   function setClassIf(element, className, condition) {
     if (condition)
       element.classList.add(className);
     else
@@ skipping 4007 matching lines @@
     }
 
     var defaultActionSeparator =
         this.dialogDom_.querySelector('#default-action-separator');
 
     this.defaultActionMenuItem_.hidden = !taskItem;
     defaultActionSeparator.hidden = !taskItem;
   }
 })();