Typo

Co-authored-by: Sadie L. Bartholomew <[email protected]>

Author: davidhassell

cf/mixin/propertiesdata.py

@@ -3467,7 +3467,7 @@ def filled(self, fill_value=None, inplace=False):
 
             fill_value: scalar, optional
                 The fill value. By default the fill returned by
-                `get_fill_value` is used, or if this is not set then
+                `fill_value` is used, or if this is not set then
                 the netCDF default fill value for the data type is
                 used (as defined by `netCDF.fillvals`).