What format(s) to include address and destination tag in one line?

[panmores]

I saw at least two different formats to have an XRP address with destination tag written in one line.

Is there a standard format for this, so that the optional tag/memo field does not have to be used?

[Flintstone]

I think I remember having to use “address -tag” before on an exchange way back when. But my memory should never be trusted.