[ticket/17480] Adjust message wording

PHPBB-17480

Author: rxu

phpBB/language/en/common.php

@@ -357,7 +357,7 @@
 	'HIDE_ME'						=> 'Hide my online status this session',
 	'HOURS'							=> 'Hours',
 	'HOME'							=> 'Home',
-	'HTTP_HANDLER_NOT_FOUND'		=> 'The operation could not be completed because cURL PHP extension and allow_url_fopen PHP ini setting have been disabled and no other HTTP handler could be found.',
+	'HTTP_HANDLER_NOT_FOUND'		=> 'The operation could not be completed because the cURL PHP extension and allow_url_fopen PHP ini setting have been disabled and no other HTTP handler could be found.',
 
 	'ICQ'						=> 'ICQ',
 	'IF'						=> 'If',