update man page for subkey-to-ssh-agent, to add info about MONKEYSPHERE_SUBKEYS_FOR_AGENT

diff --git a/man/man1/monkeysphere.1 b/man/man1/monkeysphere.1
index 6972583416f5682b8ff7629c7ea4c3264d7a1f1f..327a62334a77be5e043b2238c23ed45066421382 100644 (file)
--- a/man/man1/monkeysphere.1
+++ b/man/man1/monkeysphere.1
@@ -121,7 +121,10 @@ to
 .BR ssh\-add (1).
 For example, to remove the authentication subkeys, pass an additional
 `\-d' argument.  To require confirmation on each use of the key, pass
-`\-c'.  `s' may be used in place of `subkey\-to\-ssh\-agent'.
+`\-c'.  The MONKEYSPHERE_SUBKEYS_FOR_AGENT environment can be used to
+specify the full fingerprints of specific keys to add to the agent
+(space separated), instead of adding them all.  `s' may be used in
+place of `subkey\-to\-ssh\-agent'.
 .TP
 .B help
 Output a brief usage summary.  `h' or `?' may be used in place of
@@ -156,6 +159,10 @@ Path to ssh authorized_keys file. (~/.ssh/authorized_keys)
 .TP
 MONKEYSPHERE_PROMPT
 If set to `false', never prompt the user for confirmation. (true)
+.TP
+MONKEYSPHERE_SUBKEYS_FOR_AGENT
+A space-separated list of authentication-capable subkeys to add to the
+ssh agent with subkey-to-ssh-agent.
 
 .SH FILES