[issue6697] Check that _PyUnicode_AsString() result is not NULL

[STINNER Victor]

Changes by STINNER Victor <victor.stinner at haypocalc.com>:


Removed file: http://bugs.python.org/file16443/ssl_rand_egd_unicode-py3k.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue6697>
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