[dovecot/core] c16c05: lib: Fix assert-crash in unit test.

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: c16c05a2735f8a34fbdf7023f3ab479e709f7eac
      https://github.com/dovecot/core/commit/c16c05a2735f8a34fbdf7023f3ab479e709f7eac
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-02-19 (Sun, 19 Feb 2017)

  Changed paths:
    M src/lib/test-strfuncs.c

  Log Message:
  -----------
  lib: Fix assert-crash in unit test.

Messed up merging.