ssh-pkcs11-helper(8) on OpenBSD

The text 41a09c16c50d, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7 shipped it.

ssh-agent helper program for PKCS#11 support