KRB5_USERS_NAME
fcmd, KRB5_USERS_NAME);
fcmd, KRB5_USERS_NAME, fcmd);
"contains no paths \n"), fcmd, KRB5_USERS_NAME);
"start with '/' \n"), tc, KRB5_USERS_NAME );
pw_dir, sep, KRB5_USERS_NAME);