Update refresh.exp

refresh.exp

@@ -1,7 +1,7 @@
 #!/usr/bin/expect
 
 # This script will send the refresh command to a specified Mebe instance
-# The name of the instance (given with --sname <name>) should be given as the first argument
+# The name of the instance (given with --name <name>) should be given as the first argument
 # The second argument should be the local hostname of the node running Mebe
 # You need the expect program to use this script
 
@@ -9,7 +9,7 @@ set timeout 10
 set name [lindex $argv 0]
 set node [lindex $argv 1]
 
-spawn iex --sname meberefresher
+spawn iex --name meberefresher
 
 expect "iex\(" { send "" }
 expect -- " -->" { send "r '$name@$node' 'Elixir.IEx'\n" }