Apply suggestions from code review

Co-authored-by: Chris Markiewicz <[email protected]>

Author: mgxd

niworkflows/utils/testing.py

@@ -77,11 +77,11 @@ def generate_bids_skeleton(target_path, bids_config):
                     extension = bids_file.pop("extension", ".nii.gz")
                     suffix = bids_file.pop("suffix")
                     entities = combine_entities(**bids_file)
-                    out_file = modality_path / f"{bids_prefix}{entities}_{suffix}{extension}"
-                    out_file.touch()
+                    data_file = modality_path / f"{bids_prefix}{entities}_{suffix}{extension}"
+                    data_file.touch()
 
                     if metadata is not None:
-                        out_metadata = out_file.parent / out_file.name.replace(extension, ".json")
+                        out_metadata = data_file.parent / data_file.name.replace(extension, ".json")
                         to_json(out_metadata, metadata)
 
     return _bids_dict