Well insofar as you didn't opt for deletion, yes you did OK.
As I said I personally wouldn't have selected remember/Do not tell me about this file in the future, but that's just me. I like to know exactly what is going on in my system, whilst I would have known that this was likely to be an FP, what I also want to know is when it has been analysed and the alert corrected.
When you choose the 'Do not tell me about this file in the future' option that won't happen as you are never told about it again. The other aspect is I don't know if there is a way to reverse that decision. So it is possible if it were malicious, you could have effectively allowed it and asked not to be told about it again, in my view this is a dangerous option.