ApiFormatJson: Fix dieUsage call on unknown formatversion value

* Add missing error code
* Don't call staticly, it's not a static function

Change-Id: Ib6cee829b589f6fe0d092ebe7cca2a1d16c357fd

diff --git a/includes/api/ApiFormatJson.php b/includes/api/ApiFormatJson.php
index 3304c40..43877b7 100644 (file)
--- a/includes/api/ApiFormatJson.php
+++ b/includes/api/ApiFormatJson.php
@@ -91,7 +91,7 @@ class ApiFormatJson extends ApiFormatBase {
                                        break;
 
                                default:
-                                       self::dieUsage( __METHOD__ . ': Unknown value for \'formatversion\'' );
+                                       $this->dieUsage( __METHOD__ . ': Unknown value for \'formatversion\'', 'unknownformatversion' );
                        }
                }
                $data = $this->getResult()->getResultData( null, $transform );