Update NT4 port.

clients/tools/ldapdelete.dsp

clients/tools/ldapmodify.dsp

clients/tools/ldapmodrdn.dsp

clients/tools/ldapsearch.dsp

include/ldap.h

include/ldap_cdefs.h

libraries/liblber/liblber.dsp

libraries/libldap/apitest.c

libraries/libldap/apitest.dsp

libraries/libldap/apitest.dsw

libraries/libldap/init.c

libraries/libldap/libldap.dsp

libraries/libldap/sort.c

libraries/libldif/libldif.dsp

libraries/liblutil/getopt.c

libraries/liblutil/liblutil.dsp