chinese lang bug

[xcl3721]

hi,i use leto dms 3.4.2
when i use chinese lang pack
i found some translate was lost
so i translate some language
but when i translate the week
the Calendar with unknow code on the year view
i check code inc\inc.Calendar.php line 124

$dayNames = array();
foreach ( $dayNamesLong as $dn ){
$dayNames[] = substr($dn,0,3);//i changed here beacause chinese char was three byte
}