I couldn’t tell. I struggle with such subtleties.
I probably should’ve checked ‘454545’ in the ascii table. Seeing how it translates to ‘---‘ could’ve hinted towards that, but the clever use probably would’ve been applauded instead without thinking it was a joke.
Ah well. Egg on my face I suppose.
RFCs have four digit numbers. This will likely change within a month or so; RFC 9945 was recently assigned so it won't be long. I wonder what RFC9999 and RFC10000 will be?