Actually I got some insight from reading the SSL_shutdown man page
https://www.openssl.org/docs/ssl/SSL_shutdown.html.
If you enable quiet_shutdown, the SSL_shutdown will always return with
success. Otherwise, you may need to call SSL_shutdown multiple times
(much as you do with SSL_accept),
I'm trying to close out TS-2941.
Because ATS has SSL_CTX_set_quiet_shutdown enabled, it does not send
close_notify before shutting down the SSL connection. This does not
follow the TLS standard and causes the clients to set RSTs.
Can anyone remember why we are explicitly enabling
SSL_CTX_se
