Updated OpenSSH to 5.3.1 (pkg/42635 by Fredrik Pettai)

This is a bugfix release, no new features have been added.

Changes since OpenSSH 5.2
=========================

General Bugfixes:

* Do not limit home directory paths to 256 characters. bz#1615

* Several minor documentation and correctness fixes.

Portable OpenSSH Bugfixes:

* This release removes for support for very old versions of Cygwin and
  for Windows 95/98/ME

* Move the deletion of PAM credentials on logout to after the session
  close. bz#1534

* Make PrintLastLog work on AIX. bz#1595

* Avoid compile errors on FreeBSD from conflicts in glob.h. bz#1634

* Delay dropping of root privileges on AIX so chroot and pam_open_session
  work correctly. bz#1249 and bz#1567

* Increase client IO buffer on Cygwin to 64K, realising a significant
  performance improvement.

* Roll back bz#1241 (better handling for expired passwords on Tru64).
  The change broke password logins on some configurations.

* Accept ENOSYS as a fallback error when attempting atomic
  rename(). bz#1535

* Fix passing of variables to recursive make(1) invocations on Solaris.
  bz#1505

* Skip the tcgetattr call on the pty master on Solaris, since it never
  succeeds and can hang if large amounts of data is sent to the slave
  (eg a copy-paste). bz#1528

* Fix detection of krb5-config. bz#1639

* Fix test for server-assigned remote forwarding port for non-root users.
  bz#1578

* Fix detection of libresolv on OSX 10.6.

(martti)