Update TODO

Add error handling note, remove bind note (that's done).

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/SERVER-TODO b/SERVER-TODO
index 861be15..12706a5 100644
--- a/SERVER-TODO
+++ b/SERVER-TODO
@@ -1 +1,2 @@
-- Add -L listen option, to not bind to all devices
+- Better error handling (test it)
+