Fix doctest, typo

Author: jbrockmendel

pandas/tests/series/accessors/test_dt_accessor.py

@@ -91,7 +91,9 @@ def get_expected(ser, prop):
             return Series(result, index=ser.index, name=ser.name, dtype=result.dtype)
 
         if name == "time":
-            msg = "In a future version, this will an array with pyarrow time dtype"
+            msg = (
+                "In a future version, this will return an array with pyarrow time dtype"
+            )
             with tm.assert_produces_warning(FutureWarning, match=msg):
                 left = getattr(ser.dt, name)
                 right = get_expected(ser, name)