[ssh] add skoll to metal servers

.gitignore

@@ -25,3 +25,5 @@ jails
 known_hosts
 error.log
 *.envrc
+fish/completions/
+fish_variables

ssh/.ssh/config

@@ -64,6 +64,8 @@ Host kiviuq.local
   User powellc
 Host kari.local
   User powellc
+Host skoll.local
+  User powellc
 Host atlas.local
   User powellc