Log Message:
Update php54 to 5.4.43.

09 Jul 2015 PHP 5.4.43

- Core:
  . Fixed bug #69768 (escapeshell*() doesn't cater to !). (cmb)
  . Fixed bug #69874 (Can't set empty additional_headers for mail()), regression
    from fix to bug #68776. (Yasuo)

- Mysqlnd:
  . Fixed bug #69669 (mysqlnd is vulnerable to BACKRONYM) (CVE-2015-3152).
    (Andrey)

- Phar:
  . Fixed bug #69958 (Segfault in Phar::convertToData on invalid file). (Stas)
  . Fixed bug #69923 (Buffer overflow and stack smashing error in
    phar_fix_filepath). (Stas)