[dovecot/core] 144e0b: auth: Compiler warning fix

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 144e0b545e5e1dac1fd825b4140b65bbf44ccb31
      https://github.com/dovecot/core/commit/144e0b545e5e1dac1fd825b4140b65bbf44ccb31
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-10-10 (Mon, 10 Oct 2016)

  Changed paths:
    M src/auth/db-ldap.c

  Log Message:
  -----------
  auth: Compiler warning fix