Misc code cleanup.

clients/ud/find.c

clients/ud/mod.c

clients/ud/print.c

clients/ud/string_to_key.c

libraries/liblber/bprint.c

libraries/liblber/sockbuf.c

libraries/libldap/cache.c

libraries/libldap/cldap.c

libraries/libldap/os-ip.c

libraries/libldap/os-local.c

libraries/libldap/sasl.c

libraries/libldap/tmplout.c

libraries/libldap_r/rdwr.c

libraries/libldbm/ldbm.c

libraries/liblunicode/ucdata/ucgendat.c

libraries/liblunicode/ure/ure.c

libraries/liblunicode/utbm/utbm.c

libraries/liblutil/lockf.c

libraries/liblutil/md5.c

libraries/liblutil/sockpair.c