pyoxidized: silence the fuzzywuzzy warning about python-Levenshtein
I don't think we need the fast implementation for the test so lets ignore it for
now.
Differential Revision: https://phab.mercurial-scm.org/D11299
To run the tests, do:cd tests/python run-tests.pySee https://mercurial-scm.org/wiki/WritingTests formore information on writing tests.