test-git-export: add globs the test runner wants on Windows
The only difference for the first two was to add the globs, but the third line
of output on Windows was '..\dir2\copy'. I'm not sure why 'copy' is output on
Windows instead of '*'.
To run the tests, do:
cd tests/
python run-tests.py
See http://mercurial.selenic.com/wiki/WritingTests for
more information on writing tests.