[issue22163] max_wbits set incorrectly to -zlib.MAX_WBITS in tarfile, shouldn't be negative

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


----------
nosy: +lars.gustaebel
stage:  -> patch review
versions:  -Python 3.1, Python 3.2, Python 3.3

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22163>
_______________________________________