Comment by no_protocol

I have often seen commas placed at the start of each line when columns are being listed. I'm a little surprised this guide doesn't follow that convention. It would fit nicely with the established pattern of lining everything up:

  SELECT first_name
       , last_name
       , email_address
    FROM users

Can anyone speculate why it's not done this way in the guide? I think the reasoning behind it was to make later modification easier because adding or removing the last field required modifying two lines.