kadm5_chpass_principal
retval = kadm5_chpass_principal(handle, princ, pwarg);
retval = kadm5_chpass_principal(handle, princ, newpw);
ret.code = kadm5_chpass_principal((void *)handle, arg->princ,
kadm5_ret_t kadm5_chpass_principal(void *server_handle,
code = kadm5_chpass_principal(server_handle, princ,