Function utf8_rtrim
UTF-8 aware replacement for rtrim() Note: you only need to use this if you are supplying the charlist optional arg and it contains UTF-8 characters. Otherwise rtrim will work normally on a UTF-8 string
		
		Package: utf8
Author: Andreas Gohr <andi@splitbrain.org>
See: http://www.php.net/rtrim
See: http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
Located at vendor/joomla/string/src/phputf8/trim.php
	
	Author: Andreas Gohr <andi@splitbrain.org>
See: http://www.php.net/rtrim
See: http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
Located at vendor/joomla/string/src/phputf8/trim.php
Parameters summary
| mixed | $str | |
| mixed | $charlist = FALSE | 
Return value summary
| 
			string
		 | 
