[issue19920] TarFile.list() fails on some files

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Well, good.

But I still have several nitpicks. Here is revised patch.

* Now ASCII encoding is used to test list() output. And tests now run even if sys.stdout is a StringIO.
* test_list_verbose now test that printed files are actually separated by one new line, not by just spaces and not by two new lines.
* safe_print was simplified and renamed to _safe_print. Now streams without the "encoding" attribute are supported.
* Minor style fixes.

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Added file: http://bugs.python.org/file33792/fix_tarfile_list_print_lone_surrogate_v5.patch

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