Updated py-OpenSSL to 16.2.0.

Add patch that makes tests on NetBSD progress further.
But then there's a segfault. See
https://github.com/pyca/pyopenssl/issues/596

16.2.0 (2016-10-15)
-------------------

Changes:
^^^^^^^^

- Fixed compatibility errors with OpenSSL 1.1.0.
- Fixed an issue that caused failures with subinterpreters and embedded Pythons.
  `#552 <https://github.com/pyca/pyopenssl/pull/552>`_

16.1.0 (2016-08-26)
-------------------

Deprecations:
^^^^^^^^^^^^^

- Dropped support for OpenSSL 0.9.8.

Changes:
^^^^^^^^

- Fix memory leak in ``OpenSSL.crypto.dump_privatekey()`` with ``FILETYPE_TEXT``.
  `#496 <https://github.com/pyca/pyopenssl/pull/496>`_
- Enable use of CRL (and more) in verify context.
  `#483 <https://github.com/pyca/pyopenssl/pull/483>`_
- ``OpenSSL.crypto.PKey`` can now be constructed from ``cryptography`` objects and also exported as such.
  `#439 <https://github.com/pyca/pyopenssl/pull/439>`_
- Support newer versions of ``cryptography`` which use opaque structs for OpenSSL 1.1.0 compatibility.


(wiz)

$NetBSD: patch-tests_memdbg.py,v 1.1 2017/01/28 12:09:14 wiz Exp $

Fix running test on NetBSD.
Breaks Linux, but I expect more people to run the tests on NetBSD.
https://github.com/pyca/pyopenssl/issues/595

--- tests/memdbg.py.orig	2016-02-15 10:25:58.000000000 +0000
+++ tests/memdbg.py
@@ -18,16 +18,16 @@ _ffi.cdef(
 
     int  CRYPTO_set_mem_functions(void *(*m)(size_t),void *(*r)(void *,size_t), void (*f)(void *));
 
-    int backtrace(void **buffer, int size);
-    char **backtrace_symbols(void *const *buffer, int size);
-    void backtrace_symbols_fd(void *const *buffer, int size, int fd);
+    size_t backtrace(void **buffer, size_t size);
+    char **backtrace_symbols(void *const *buffer, size_t size);
+    void backtrace_symbols_fd(void *const *buffer, size_t size, int fd);
     """)  # noqa
 _api = _ffi.verify(
     """
     #include <openssl/crypto.h>
     #include <stdlib.h>
     #include <execinfo.h>
-    """, libraries=["crypto"])
+    """, libraries=["crypto", "execinfo"])
 C = _ffi.dlopen(None)
 
 verbose = False