Hide explanatory text about multiple participants unless 2 or more participants selected
On event registration pages, when multiple participants is enabled, there is a lengthy bit of explanatory text shown: "Fill in your registration information on this page. If you are registering additional people, you will be able to enter their registration information after you complete this page and click "Continue"."
It would be better to hide this text until the user selects a number of participants greater than one. I'll submit a patch if this change is supported.