[ticket/11662] Typos: occured -> occurred

PHPBB3-11662
Merge remote-tracking branch 'remotes/bantu/ticket/11662' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* remotes/bantu/ticket/11662:
  [ticket/11662] Typos: occured -> occurred
Merge branch 'develop-olympus' into develop

# By Andreas Fischer
# Via Andreas Fischer (1) and Nathaniel Guse (1)
* develop-olympus:
  [ticket/11662] Typos: occured -> occurred

Conflicts:
	tests/template/template_test.php