configre: properly check for libtoolize

Fix a copy-n-paste typo, where the libtoolize check
would re-run the libtool check.

Signed-off-by: Johannes Stezenbach <js@sig21.net>

#!/bin/sh

call_to=@@DEFAULT_LD@@

case "${CTNG_LD_IS}" in

    bfd)    call_to=bfd;;

    gold)   call_to=gold;;

esac

exec "${0}.${call_to}" "$@"

exit $?