Add whatsnew entry

Author: roberthdevries

doc/source/whatsnew/v1.1.0.rst

@@ -288,6 +288,8 @@ Other enhancements
 - :meth:`HDFStore.put` now accepts `track_times` parameter. Parameter is passed to ``create_table`` method of ``PyTables`` (:issue:`32682`).
 - Make :class:`pandas.core.window.Rolling` and :class:`pandas.core.window.Expanding` iterable（:issue:`11704`)
 - Make ``option_context`` a :class:`contextlib.ContextDecorator`, which allows it to be used as a decorator over an entire function (:issue:`34253`).
+- :meth:`to_csv` now accepts an ``error`` argument (:issue:`22610`)
+-
 
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