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src/black/__init__.py

@@ -1375,6 +1375,8 @@ def patch_click() -> None:
 
 
 def patched_main() -> None:
+    # PyInstaller patches multiprocessing to need freeze_support() even in non-Windows
+    # environments so just assume we always need to call it if frozen.
     if getattr(sys, "frozen", False):
         from multiprocessing import freeze_support