upstream: some cleanup for BindInterface and ssh-keyscan;

OpenBSD-Commit-ID: 1a719ebeae22a166adf05bea5009add7075acc8c
diff --git a/scp.1 b/scp.1
index d6d9d97..8d251e3 100644
--- a/scp.1
+++ b/scp.1
@@ -8,9 +8,9 @@
 .\"
 .\" Created: Sun May  7 00:14:37 1995 ylo
 .\"
-.\" $OpenBSD: scp.1,v 1.76 2017/10/25 06:19:46 jmc Exp $
+.\" $OpenBSD: scp.1,v 1.77 2018/02/23 07:38:09 jmc Exp $
 .\"
-.Dd $Mdocdate: October 25 2017 $
+.Dd $Mdocdate: February 23 2018 $
 .Dt SCP 1
 .Os
 .Sh NAME
@@ -124,6 +124,7 @@
 .It AddressFamily
 .It BatchMode
 .It BindAddress
+.It BindInterface
 .It CanonicalDomains
 .It CanonicalizeFallbackLocal
 .It CanonicalizeHostname