[BUGFIX] fe_adminLib.inc uses undefined function

fe_adminLib.inc calls preg_spliti() which does not exist.

Change-Id: I7c16c2590ddc193fcad99e970ab8c6975e369261
Fixes: #32773
Releases: 4.7, 4.6, 4.5, 4.4
Reviewed-on: http://review.typo3.org/7487
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Philipp Gampe
Reviewed-by: Tolleiv Nietsch
Tested-by: Tolleiv Nietsch
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer

typo3/sysext/cms/tslib/media/scripts/fe_adminLib.inc

@@ -1434,7 +1434,7 @@ class user_feAdmin	{
 	 */
 	function sendHTMLMail($content,$recipient,$dummy,$fromEmail,$fromName,$replyTo='')	{
 		if (trim($recipient) && trim($content))	{
-			$parts = preg_spliti('<title>|</title>', $content, 3);
+			$parts = preg_split('/<title>|<\/title>/i', $content, 3);
 			$subject = trim($parts[1]) ? trim($parts[1]) : 'TYPO3 FE Admin message';
 
 			$Typo3_htmlmail = t3lib_div::makeInstance('t3lib_htmlmail');