Deduplicate hosts in ssh-tunnel

The ssh-tunnel plugin prints a host every time it finds a line with DynamicForward or LocalForward. This change condenses consecutive duplicate hosts to ensure only one host is displayed in the menu, even if that host configuration has multiple forwards configured.

Network/ssh-tunnel.1s.sh

@@ -31,7 +31,7 @@ function hosts() {
         $1 == "DynamicForward" || $1 == "LocalForward" {
             print host;
         }
-    ' "$1"
+    ' "$1" | uniq
 }
 
 for h in $(hosts ~/.ssh/config); do