Add an expected case to cover error message as spelled by python 2.2.3.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 1e6201a22cf2efd1d5fe347008317b83bdaeada9
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2005-10-04T02:50:04Z
Releases: 8.1.0
Add an expected case to cover error message as spelled by python 2.2.3.
Per buildfarm results and Michael Fuhr.

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