ssh_config: Improve comment for ControlPath.

diff --git a/ssh_config b/ssh_config
index 9dc5150803fdb0c04ed89778233d7b85d5c4e218..5f01046c85cc672ac38a52deeb2010435152b002 100644 (file)
--- a/ssh_config
+++ b/ssh_config
@@ -29,8 +29,9 @@ Host *
 # to local X11!
     ForwardX11Trusted no
 
-# If -M is used store the control master socket in ~/.ssh. Necessary for
-# ControlMaster to work.
+# Allow using -M (ControlMaster) to create a master SSH session which
+# "tunnels" other connections to the same host, thus reducing the number of
+# authentications (which are relatively slow) and TCP connections.
     ControlPath ~/.ssh/master-%l-%h-%p-%r
 
 # Abort if not all requested port forwardings can be set up.