* Modify pty_update_utmp so it takes additional parameters instead of

* Modify pty_update_utmp so it takes additional parameters instead of
struct utmp.
* Move pty_update_wtmp to an internal function; pty_update_utmp and
pty_logwtmp call it.
* Don't include utmp.h or utmpx.h in libpty.h; they don't need it any
more.
* Don't use pid_t in libpty.h or any interfaces it defines\.  We'll
have to settle for int.
* Add logic so that UTMP_FILE and WTMP_FILE get defined on NetBSD
(Actually fairly clean).

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@6453 dc483132-0cff-0310-8789-dd5450dbe970