[dovecot/core] 8d5a20: lib-dcrypt: Compiler warning fixes

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 8d5a200b82ee4f7fe7643c704f37fdf23f813923
      https://github.com/dovecot/core/commit/8d5a200b82ee4f7fe7643c704f37fdf23f813923
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-05-30 (Mon, 30 May 2016)

  Changed paths:
    M src/lib-dcrypt/dcrypt-openssl.c

  Log Message:
  -----------
  lib-dcrypt: Compiler warning fixes