Added '.)' to TRAILING_PUNCTUATION so that a period will be stripped from URLs also when it is followed by a close parenthesis. See Ticket #18644.
urlize is already extensively tested in regressionttests/defaultfilters/tests.py. Please move your test there.
Fixed #18644 -- Made urlize trim trailing period followed by parenthesis
@claudep Thanks for showing me where the test should go. Moved it and amended the existing commit.