degesch: one final fix for the test script

test

@@ -22,7 +22,7 @@ expect_after {
 # Connect to the daemon
 send "/server add localhost\n"
 expect "]"
-send "/set localhost.addresses = \"localhost\"\n"
+send "/set servers.localhost.addresses = \"localhost\"\n"
 expect "Option changed"
 send "/disconnect\n"
 expect "]"