Improve trade logging when executed by server console

Currently logs for `do give-item jonah188 PRACTICE SHARD 64` look like this:

```
[14:15:57 INFO]: Thread RCON Client /127.0.0.1 started
[14:15:57 INFO]: Source scoreboard name:
[14:15:57 INFO]: Thread RCON Client /127.0.0.1 shutting down
```