tester.py: canonicalize_stderr: add substitution for object.__new__() error

tools/tester.py

@@ -110,6 +110,7 @@ def canonicalize_stderr(stderr):
     substitutions = [
             ("NameError: global name '", "NameError: name '"),
             ("AttributeError: '(\w+)' object attribute '(\w+)' is read-only", "AttributeError: \\2"),
+            (r"TypeError: object.__new__\(\) takes no parameters", "TypeError: object() takes no parameters"),
             ]
 
     for pattern, subst_with in substitutions: