Why all the printf copy/pasta around the opcode enum? Can't the author use pre-processor string concatenation to write once and then leverage that to map enum

Why all the printf copy/pasta around the opcode enum? Can't the author use pre-processor string concatenation to write once and then leverage that to map enum to string and back? At least I'm doing that in a little scripting language parser and it looks portable. Edit: I'm actually using pre-processor string concatenation for something unrelated. You don't even need that to do the mapping.