It really doesn't matter as long as you connect 110V across the L & N connections.
Here in Sweden, we use Schucko connectors for 230V outlets and they're not polarised so depending on which way around you insert the plug live/neutral would be switched. The connected load doesn't care one bit and it doesn't make any difference. Some audiophools might not agree but lets not go there.

Now, with 3-phase it's obviously another story but that's not the case here.