[dovecot/core] 67905c: lib: Fix test-utc-mktime with 32bit time_t

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 67905cc9328270abbe5342b1e77d7ba4e8134552
      https://github.com/dovecot/core/commit/67905cc9328270abbe5342b1e77d7ba4e8134552
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-02-21 (Tue, 21 Feb 2017)

  Changed paths:
    M src/lib/test-utc-mktime.c

  Log Message:
  -----------
  lib: Fix test-utc-mktime with 32bit time_t