[issue7622] [patch] improve unicode methods: split() rsplit() and replace()

[Florent Xicluna]

Florent Xicluna <laxyf at yahoo.fr> added the comment:

There's some reference leaking somewhere...
Will investigate.

~ $ ./python Lib/test/regrtest.py -R 2:3: test_unicode
test_unicode leaked [7, 7, 7] references, sum=21

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<http://bugs.python.org/issue7622>
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