Fix doctest for Specification.description. (#803)

Author: PProfizi

src/ansys/dpf/core/operator_specification.py

@@ -298,7 +298,7 @@ def description(self) -> str:
         >>> from ansys.dpf import core as dpf
         >>> operator = dpf.operators.math.scale_by_field()
         >>> operator.specification.description
-        "Scales a field (in 0) by a scalar field (in 1). If one field's ... the entire other field."
+        "Scales a field (in 0) by a scalar field (in 1). If one field's ..."
         """
         if self._internal_obj is not None:
             return self._api.operator_specification_get_description(self)