[dovecot/core] f2edbc: lib-dcrypt: Don't finalize encryption on o_stream_...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: f2edbc51be62d7da4a4b37a72f9832851f669caa
      https://github.com/dovecot/core/commit/f2edbc51be62d7da4a4b37a72f9832851f669caa
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-09-21 (Wed, 21 Sep 2016)

  Changed paths:
    M src/lib-dcrypt/ostream-encrypt.c

  Log Message:
  -----------
  lib-dcrypt: Don't finalize encryption on o_stream_flush()

For example the default o_stream_uncork() implementation enforces flushing
and it's probably better not to change that. In general there's really no
reason to perform the finalization at flush when the stream can't be written
to anymore (whereas lib-compression ostreams allow writes after flushes).