Update mako to 1.1.2

lib/mako/exceptions.py

@@ -1,5 +1,5 @@
 # mako/exceptions.py
-# Copyright 2006-2019 the Mako authors and contributors <see AUTHORS file>
+# Copyright 2006-2020 the Mako authors and contributors <see AUTHORS file>
 #
 # This module is part of Mako and is released under
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
@@ -166,9 +166,7 @@ class RichTraceback(object):
                     module_source = info.code
                     template_source = info.source
                     template_filename = (
-                        info.template_filename
-                        or info.template_uri
-                        or filename
+                        info.template_filename or info.template_uri or filename
                     )
                 except KeyError:
                     # A normal .py file (not a Template)