Correct typo in comments: 'initialized'
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Correct typo in comments: 'initialized'
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Correct typo in comments: 'initialized'
Merge branch 'PHP-5.6'

* PHP-5.6:
  Correct typo in comments: 'initialized'

Conflicts:
	ext/dom/php_dom.c
	ext/spl/php_spl.c