[dovecot/core] ec61c4: lib: Fix static analyzer warning about uninitializ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: ec61c407caf0ade72e3c8ad881cc445653ccfa1f
      https://github.com/dovecot/core/commit/ec61c407caf0ade72e3c8ad881cc445653ccfa1f
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-12-15 (Fri, 15 Dec 2017)

  Changed paths:
    M src/lib/lib-event.c

  Log Message:
  -----------
  lib: Fix static analyzer warning about uninitialized va_list