How to suggest Kernel#printf to add a note to see sprintf

when we do

ri Kernel#printf

it shows some basic info,
but if we do

ri Kernel#sprintf

a lot more is shown for the details.

I wonder how a suggestion can be added so that printf includes a note to
see sprintf?

I wonder how a suggestion can be added so that printf includes a note to
see sprintf?

You can edit the rdoc associated with printf to add such a note, then
submit a patch to redmine.ruby-lang.org

viz: http://www.ruby-lang.org/en/community/ruby-core/