Log Message:
Maintenance of openssh pacakge:

1. Add support for check and create ECDSA host key for SSH protocol
   version 2.

2. Disable use of strnvis(3) on NetBSD.  NetBSD current after 2011/03/12
   has strnvis(3), but it has different argument from OpenBSD (and other
   system).

Bump PKGREVISION.