Extend param description.

src/spikeinterface/sorters/external/kilosort4.py

@@ -99,7 +99,7 @@ class Kilosort4Sorter(BaseSorter):
         "save_extra_kwargs": "If True, additional kwargs are saved to the output",
         "skip_kilosort_preprocessing": "Can optionally skip the internal kilosort preprocessing",
         "scaleproc": "int16 scaling of whitened data, if None set to 200.",
-        "save_preprocessed_copy": "save a pre-processed copy of the data (including drift correction) to temp_wh.dat in the results directory",
+        "save_preprocessed_copy": "save a pre-processed copy of the data (including drift correction) to temp_wh.dat in the results directory and format Phy output to use that copy of the data",
         "torch_device": "Select the torch device auto/cuda/cpu",
     }