diff -r a6b8b1ab9116 -r 444fa55f5dd2 mercurial/ui.py
--- a/mercurial/ui.py	Thu Mar 02 19:02:52 2023 +0100
+++ b/mercurial/ui.py	Thu Mar 02 11:54:21 2023 +0100
@@ -2222,7 +2222,10 @@
             del calframe
 
     def deprecwarn(
-        self, msg: bytes, version: bytes, stacklevel: int = 2
+        self,
+        msg: bytes,
+        version: bytes,
+        stacklevel: int = 2,
     ) -> None:
         """issue a deprecation warning