[Patch 2/3] ssh.txt: document nonstopssh variant

["Randall S. Becker" <rsbecker@nexbridge.com>]

From 29158698900b312b20bfe46354d04898bf4eec04 Mon Sep 17 00:00:00 2001
From: "Randall S. Becker" <rsbecker@nexbridge.com>
Date: Fri, 30 Apr 2021 10:07:49 -0400
Subject: [Patch 2/3] ssh.txt: document nonstopssh variant

The documentation changes describe the new nonstopssh variant and
environment variables supporting the construction of the SSH command
on the NonStop x86 and ia64 platforms.

Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
---
 Documentation/config/ssh.txt | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Documentation/config/ssh.txt b/Documentation/config/ssh.txt
index 2ca4bf93e1..75f5cc3a0e 100644
--- a/Documentation/config/ssh.txt
+++ b/Documentation/config/ssh.txt
@@ -11,7 +11,8 @@ ssh.variant::
 +
 The config variable `ssh.variant` can be set to override this detection.
 Valid values are `ssh` (to use OpenSSH options), `plink`, `putty`,
-`tortoiseplink`, `simple` (no options except the host and remote command).
+`tortoiseplink`, `simple` (no options except the host and remote command),
+`nonstopssh`.
 The default auto-detection can be explicitly requested using the value
 `auto`.  Any other value is treated as `ssh`.  This setting can also be
 overridden via the environment variable `GIT_SSH_VARIANT`.
@@ -29,7 +30,22 @@ follows:

 * `tortoiseplink` - [-P port] [-4] [-6] -batch [username@]host command

+* `nonstopssh` - [-p port] [-Z] [-Q] [-S ssh-process] [username@]host command
+
 --
 +
 Except for the `simple` variant, command-line parameters are likely to
 change as git gains new features.
+
+The `nonstopssh` variant is controlled using environment variables:
++
+--
+
+* SSH2_PROCESS_NAME defines the ssh-process to use for communications.
+
+* SSH_SUPPRESS_BANNER, if present, inhibits the -Z option.
+
+* SSH_SUPPRESS_QUIET, if present, inhibits the -Q option.
+--
++
+Consult the NonStop SSH manual for details on NonStop SSH options.
--
2.29.2