[pyOpenSSL] potential memory leak

[Adrian M. <ad...@co...>]

I found a potential memory leak in flush_error_queue@util.c  using 
Py_DECREF macro with a function call inside. Since macros expand its 
argument n times ( as Py_DECREF does, where n > 1 ) this call could be 
generated n times. In this case error_queue_to_list allocates a PyList 
object and transfer the ownership of the pointer to the caller function.

Im attaching a simple patch

cheers

a/