Fixed: FS#637 - Email blacklist table header

interface/web/mail/lib/lang/en_spamfilter_blacklist_list.lng

-<?php
-$wb["list_head_txt"] = 'Spamfilter Blacklist';
-$wb["active_txt"] = 'Active';
-$wb["server_id_txt"] = 'Server';
-$wb["priority_txt"] = 'Priority';
-$wb["rid_txt"] = 'User';
-$wb["email_txt"] = 'Whitelisted Email';
-$wb["add_new_record_txt"] = 'Add Blacklist record';
+<?php
+$wb["list_head_txt"] = 'Spamfilter Blacklist';
+$wb["active_txt"] = 'Active';
+$wb["server_id_txt"] = 'Server';
+$wb["priority_txt"] = 'Priority';
+$wb["rid_txt"] = 'User';
+$wb["email_txt"] = 'Blacklisted Email';
+$wb["add_new_record_txt"] = 'Add Blacklist record';
 ?>
\ No newline at end of file