[dovecot/core] 933d16: auth: Compiler warning fix

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: 933d16f4bd223e2495a8699ca63860a31f5cd77b
      https://github.com/dovecot/core/commit/933d16f4bd223e2495a8699ca63860a31f5cd77b
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-10-17 (Mon, 17 Oct 2016)

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

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