cleanup for release engineering

clients/tools/ldapsearch.c

include/ldap.h

libraries/libldap/groupings.c

libraries/libldap/test.c

libraries/libldap/txn.c

libraries/libldap/url.c

servers/slapd/back-bdb/search.c

servers/slapd/back-ldbm/filterindex.c

servers/slapd/back-ldbm/search.c

servers/slapd/backend.c

servers/slapd/backglue.c

servers/slapd/config.c

servers/slapd/saslauthz.c

servers/slapd/search.c

servers/slapd/slap.h