fix confusing argument name in unicodeobject.c (GH-12653)



diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index ad2a54a..b40ecb7 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -1765,9 +1765,9 @@
 
 
 int
-PyUnicodeTranslateError_GetEnd(PyObject *exc, Py_ssize_t *start)
+PyUnicodeTranslateError_GetEnd(PyObject *exc, Py_ssize_t *end)
 {
-    return PyUnicodeEncodeError_GetEnd(exc, start);
+    return PyUnicodeEncodeError_GetEnd(exc, end);
 }