We shouldn't use strerror to print errno here since the poll return value was 0, not -1:
[2024-07-13 17:50:55.660] DEBUG[3050722]: net_telnet.c:105 telnet_read_command: poll returned 0: No space left on device
Doing so is just confusing since the last system error is printed out and is not relevant, since nothing went wrong.
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