(ITS#5228) Patches for minor typos in man pages

CHANGES

doc/man/man1/ldapmodify.1

doc/man/man3/ldap_extended_operation.3

doc/man/man3/ldap_get_values.3

doc/man/man3/ldap_parse_vlv_control.3

doc/man/man3/ldap_url.3

doc/man/man5/slapo-ppolicy.5

doc/man/man8/slapacl.8

doc/man/man8/slapadd.8

doc/man/man8/slapauth.8

doc/man/man8/slapcat.8

doc/man/man8/slapdn.8

doc/man/man8/slapindex.8

doc/man/man8/slaptest.8