Bugfix (introduced: Postfix 3.0): the makedefs script ignored
readme_directory=pathname overrides. Fix by Todd C. Olson.
File: makedefs.

Bugfix (introduced: Postfix 3.0): the tls_session_ticket_cipher
documentation says aes-256-cbc, but the implementation was
using aes-128-cbc (note that Postfix SMTP server and client
processes have a limited life time).

Bitrot: fixes for incompatible OpenSSL 1.1.0 API changes.
Viktor Dukhovni.  Files: posttls-finger/posttls-finger.c,
tls/tls.h, tls/tls_dane.c, tls/tls_verify.c, tls/tls_server.c,
tls/tls_client.c.