[divxstage] Fix typo in IE_NAME

youtube_dl/extractor/divxstage.py

@@ -4,7 +4,7 @@ from .novamov import NovaMovIE
 
 
 class DivxStageIE(NovaMovIE):
-    IE_NAME = 'divstage'
+    IE_NAME = 'divxstage'
     IE_DESC = 'DivxStage'
 
     _VALID_URL = NovaMovIE._VALID_URL_TEMPLATE % {'host': 'divxstage\.(?:eu|net|ch|co|at|ag)'}