Replaced digits in unicode test.

Digits ²⁰⁴¹ are not in Unicode category Nd (decimal digits), and are
not matches with unicode regexp \d in Python version >=2.7. They were replaced
with ２０４１ that belog to Nd, so the test can be run on both python2.6 and
python2.7.



git-svn-id: https://svn.apache.org/repos/asf/bloodhound/trunk@1486592 13f79535-47bb-0310-9956-ffa450edef68