In chkconfig-1.3.29 there is a typo in pl translation. In translation to Polish of "service %s supports chkconfig, but is not referenced in any runlevel (run 'chkconfig --add %s')" message you will find ..."chkconfig -add %s", because argument '-add' don't exist (only --add), chkconfig will return error. Attached patch resolve this bug.
Created attachment 130528 [details] Patch against pl.po file
Fixed in CVS, will be in 1.3.30-1. Thanks!