super Python2 valide

scripts/r.in.wms/wms_gdal_drv.py

@@ -36,7 +36,7 @@ class NullDevice():
 class WMSGdalDrv(WMSBase):
 
     def __init__(self):
-        super().__init__()
+        super(WMSGdalDrv, self).__init__()
         self.proxy = None
         self.proxy_user_pw = None