--- a/mercurial/cext/parsers.c	Fri Jun 03 17:39:58 2022 +0200
+++ b/mercurial/cext/parsers.c	Mon Jun 06 13:58:32 2022 +0400
@@ -374,7 +374,7 @@
 	} else {
 		PyErr_Format(PyExc_RuntimeError,
 		             "unknown state: `%c` (%d, %d, %d)", state, mode,
-		             size, mtime, NULL);
+		             size, mtime);
 		Py_DECREF(t);
 		return NULL;
 	}