fix uninitialized args usage
Merge branch 'master' of git.php.net:php-src

# By Stanislav Malyshev (5) and Remi Collet (1)
# Via Stanislav Malyshev
* 'master' of git.php.net:php-src:
  5.4.32
  fix potentially missing NUL termination
  Fix bug #67730 - Null byte injection possible with imagexxx functions
  Fixed bug #67717 - segfault in dns_get_record
  Fix bug #67716 - Segfault in cdf.c
  5.4.32 RC1